© Wiener Arbeitsgemeinschaft für Astronomie. 
Impressum.
Diese Ephemeride wird aktuell generiert über das API des JPL Horizons Systems der NASA.
API VERSION: 1.2
API SOURCE: NASA/JPL Horizons API
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JPL/HORIZONS 333P/LINEAR 2025-Jul-05 10:51:11
Rec #:90001315 (+COV) Soln.date: 2025-Jun-26_10:13:25 # obs: 1271 (2007-2025)
IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs):
EPOCH= 2458884.5 ! 2020-Feb-05.0000000 (TDB) RMSW= n.a.
EC= .7360256754870331 QR= 1.1142047522875 TP= 2457480.5706739658
OM= 115.6171488266364 W= 26.08078065177351 IN= 131.9649378177709
A= 4.220883051195263 MA= 159.567463292911 ADIST= 7.327561350103026
PER= 8.6718784342213 N= .113657761 ANGMOM= .023924453
DAN= 1.16448 DDN= 5.70721 L= 97.4937341
B= 19.0803982 MOID= .17475601 TP= 2016-Apr-02.0706739658
Comet physical (GM= km^3/s^2; RAD= km):
GM= n.a. RAD= n.a.
M1= 14.8 M2= n.a. k1= 8.25 k2= n.a. PHCOF= n.a.
Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au):
AMRAT= 0. DT= 0.
A1= 0. A2= -4.060047504026E-12 A3= 0.
Standard model:
ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808
COMET comments
1: soln ref.= JPL#59, data arc: 2007-11-04 to 2025-06-24
2: k1=8.25;
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Ephemeris / API_USER Sat Jul 5 10:51:11 2025 Pasadena, USA / Horizons
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Target body name: 333P/LINEAR {source: JPL#59}
Center body name: Earth (399) {source: DE441}
Center-site name: GEOCENTRIC
*******************************************************************************
Start time : A.D. 2024-Dec-01 00:00:00.0000 UT
Stop time : A.D. 2024-Dec-31 00:00:00.0000 UT
Step-size : 1440 minutes
*******************************************************************************
Target pole/equ : undefined
Target radii : undefined
Center geodetic : 0.0, 0.0, -6378.137 {E-lon(deg),Lat(deg),Alt(km)}
Center cylindric: 0.0, 0.0, 0.0 {E-lon(deg),Dxy(km),Dz(km)}
Center pole/equ : ITRF93 {East-longitude positive}
Center radii : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c}
Target primary : Sun
Vis. interferer : MOON (R_eq= 1737.400) km {source: DE441}
Rel. light bend : Sun {source: DE441}
Rel. lght bnd GM: 1.3271E+11 km^3/s^2
Small-body perts: Yes {source: SB441-N16}
Atmos refraction: NO (AIRLESS)
RA format : HMS
Time format : CAL
Calendar mode : Mixed Julian/Gregorian
EOP file : eop.250704.p250930
EOP coverage : DATA-BASED 1962-JAN-20 TO 2025-JUL-04. PREDICTS-> 2025-SEP-29
Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s
Table cut-offs 1: Elevation (-90.0deg=NO ),Airmass (>38.000=NO), Daylight (NO )
Table cut-offs 2: Solar elongation ( 0.0,180.0=NO ),Local Hour Angle( 0.0=NO )
Table cut-offs 3: RA/DEC angular rate ( 0.0=NO )
*******************************************************************************
Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.):
EPOCH= 2458884.5 ! 2020-Feb-05.0000000 (TDB) RMSW= n.a.
EC= .7360256754870331 QR= 1.1142047522875 TP= 2457480.5706739658
OM= 115.6171488266364 W= 26.08078065177351 IN= 131.9649378177709
Equivalent ICRF heliocentric cartesian coordinates (au, au/d):
X= 1.319822770387766E+00 Y=-5.509975870164318E+00 Z=-4.542327970099810E+00
VX=-2.236692239604423E-03 VY= 5.348538064495727E-04 VZ=-2.470252244151631E-03
Comet physical (GM= km^3/s^2; RAD= km):
GM= n.a. RAD= n.a.
M1= 14.8 M2= n.a. k1= 8.25 k2= n.a. PHCOF= n.a.
Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au):
AMRAT= 0. DT= 0.
A1= 0. A2= -4.060047504026E-12 A3= 0.
Standard model:
ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808
******************************************************************************************************************************************************************************************************************************
Date__(UT)__HR:MN R.A._____(ICRF)_____DEC R.A.__(a-apparent)__DEC dRA*cosD d(DEC)/dt T-mag N-mag r rdot delta deldot S-O-T /r Cnst Sky_motion Sky_mot_PA RelVel-ANG
******************************************************************************************************************************************************************************************************************************
$$SOE
2024-Dec-01 00:00 12 22 34.70 +40 34 10.9 12 23 48.05 +40 25 44.1 241.2999 374.9118 14.138 n.a. 1.113196452046 0.5173059 0.61774542811984 -29.7237028 84.5881 /L CVn 7.4308753 32.766053 -28.17981
2024-Dec-02 00:00 12 31 37.25 +43 07 08.7 12 32 49.11 +42 58 43.1 263.7970 389.6212 14.081 n.a. 1.113583093756 0.8213975 0.60136308323897 -26.9639624 85.4653 /L CVn 7.8420785 34.100368 -25.31758
2024-Dec-03 00:00 12 41 56.74 +45 45 25.0 12 43 06.63 +45 37 02.0 288.7900 401.3710 14.029 n.a. 1.114145220316 1.1249215 0.58664739595668 -23.9529051 86.2966 /L CVn 8.2411293 35.735347 -22.29071
2024-Dec-04 00:00 12 53 48.77 +48 27 33.0 12 54 56.11 +48 19 14.3 316.4212 408.8502 13.983 n.a. 1.114882440063 1.4276710 0.57374227251672 -20.6961175 87.0715 /L CVn 8.6165359 37.737338 -19.10637
2024-Dec-05 00:00 13 07 32.28 +51 11 31.3 13 08 36.27 +51 03 19.5 346.7329 410.4923 13.944 n.a. 1.115794242022 1.7294412 0.56278593271952 -17.2079088 87.7786 /L CVn 8.9555639 40.186973 -15.77659
2024-Dec-06 00:00 13 23 29.72 +53 54 37.5 13 24 29.36 +53 46 36.1 379.5774 404.4920 13.913 n.a. 1.116879997431 2.0300304 0.55390553741413 -13.5123721 88.4062 /L UMa 9.2450101 43.179981 -12.31864
2024-Dec-07 00:00 13 42 06.56 +56 33 23.3 13 43 00.61 +56 25 37.2 414.4699 388.8697 13.891 n.a. 1.118138961624 2.3292398 0.54721140269754 -9.6437073 88.9432 /L UMa 9.4722534 46.825241 -8.754980
2024-Dec-08 00:00 14 03 49.45 +59 03 31.8 14 04 36.46 +58 56 07.8 450.3700 361.6286 13.878 n.a. 1.119570276258 2.6268750 0.54279130546982 -5.6455494 89.3792 /L UMa 9.6264732 51.236967 -5.112831
2024-Dec-09 00:00 14 29 01.69 +61 20 01.0 14 29 40.14 +61 13 07.6 485.4054 321.0839 13.875 n.a. 1.121172971868 2.9227458 0.54070549713891 -1.5691854 89.7061 /L Dra 9.6998465 56.516332 -1.423171
2024-Dec-10 00:00 14 57 55.03 +63 17 17.4 14 58 23.65 +63 11 05.5 516.6445 266.4574 13.881 n.a. 1.122945970726 3.2166667 0.54098305256384 2.5292498 89.9182 /L Dra 9.6884958 62.717755 2.2806564
2024-Dec-11 00:00 15 30 17.94 +64 49 49.2 15 30 36.25 +64 44 31.0 540.1791 198.7401 13.898 n.a. 1.124888089948 3.5084580 0.54362006100220 6.5922766 90.0126 /L Dra 9.5929822 69.800666 5.9646354
2024-Dec-12 00:00 16 05 24.46 +65 52 59.8 16 05 33.35 +65 48 47.1 551.8756 121.5087 13.925 n.a. 1.126998044851 3.7979456 0.54857992454837 10.5647739 89.9900 /L Dra 9.4182306 77.583067 9.5958696
2024-Dec-13 00:00 16 41 52.40 +66 24 13.9 16 41 54.33 +66 21 15.5 548.8482 40.95666 13.960 n.a. 1.129274452490 4.0849612 0.55579571971729 14.3973331 89.8539 /L Dra 9.1729039 85.732331 13.144223
2024-Dec-14 00:00 17 17 58.28 +66 23 45.7 17 17 56.82 +66 22 05.4 530.9172 -35.4908 14.004 n.a. 1.131715835373 4.3693436 0.56517427858269 18.0487978 89.6105 /L Dra 8.8683694 93.824419 16.583627
2024-Dec-15 00:00 17 52 04.62 +65 54 39.8 17 52 03.49 +65 54 15.7 500.8681 -101.497 14.056 n.a. 1.134320625314 4.6509379 0.57660143291001 21.4877294 89.2679 /T Dra 8.5174757 101.45547 19.892920
2024-Dec-16 00:00 18 23 03.63 +65 01 59.9 18 23 05.74 +65 02 45.6 463.2123 -153.558 14.114 n.a. 1.137087167411 4.9295965 0.58994778149699 24.6927694 88.8357 /T Dra 8.1333638 108.34073 23.056200
2024-Dec-17 00:00 18 50 24.75 +63 51 34.3 18 50 31.87 +63 53 20.9 422.4646 -191.180 14.179 n.a. 1.140013724142 5.2051789 0.60507438615655 27.6520725 88.3242 /T Dra 7.7284837 114.34839 26.062729
2024-Dec-18 00:00 19 14 07.76 +62 28 54.2 19 14 20.63 +62 31 32.4 382.0443 -215.911 14.248 n.a. 1.143098479558 5.4775522 0.62183793761693 30.3620905 87.7435 /T Dra 7.3139039 119.47284 28.906500
2024-Dec-19 00:00 19 34 30.50 +60 58 40.0 19 34 49.14 +61 02 01.1 344.0356 -230.179 14.321 n.a. 1.146339543560 5.7465910 0.64009510626796 32.8260140 87.1037 /T Dra 6.8989267 123.78469 31.585587
2024-Dec-20 00:00 19 51 58.43 +59 24 31.3 19 52 22.49 +59 28 27.7 309.4439 -236.478 14.397 n.a. 1.149734956259 6.0121777 0.65970595798386 35.0521311 86.4138 /T Cyg 6.4909641 127.38718 34.101403
2024-Dec-21 00:00 20 06 58.08 +57 49 11.0 20 07 27.04 +57 53 36.7 278.5695 -236.986 14.475 n.a. 1.153282692395 6.2742025 0.68053644445303 37.0522878 85.6822 /T Cyg 6.0956069 130.38860 36.457946
2024-Dec-22 00:00 20 19 53.79 +56 14 35.2 20 20 27.08 +56 19 25.2 251.3159 -233.443 14.556 n.a. 1.156980665791 6.5325635 0.70246006164508 38.8405584 84.9163 /T Cyg 5.7168150 132.88842 38.661104
2024-Dec-23 00:00 20 31 06.53 +54 42 03.5 20 31 43.60 +54 47 13.6 227.3954 -227.175 14.637 n.a. 1.160826733849 6.7871665 0.72535881321549 40.4321706 84.1223 /T Cyg 5.3571666 134.97225 40.718057
2024-Dec-24 00:00 20 40 53.79 +53 12 28.0 20 41 34.17 +53 17 55.2 206.4482 -219.164 14.719 n.a. 1.164818702040 7.0379253 0.74912362772714 41.8426864 83.3058 /T Cyg 5.0181225 136.71125 42.636771
2024-Dec-25 00:00 20 49 29.93 +51 46 21.1 20 50 13.18 +51 52 02.6 188.1072 -210.117 14.802 n.a. 1.168954328394 7.2847615 0.77365437052111 43.0874112 82.4713 /T Cyg 4.7002769 138.16347 44.425610
2024-Dec-26 00:00 20 57 06.63 +50 24 00.5 20 57 52.38 +50 29 54.3 172.0284 -200.538 14.885 n.a. 1.173231327957 7.5276044 0.79885957225137 44.1809962 81.6228 /T Cyg 4.4035775 139.37590 46.093035
2024-Dec-27 00:00 21 03 53.39 +49 05 34.3 21 04 41.34 +49 11 38.7 157.9036 -190.781 14.967 n.a. 1.177647377205 7.7663910 0.82465597332023 45.1371921 80.7634 /T Cyg 4.1275106 140.38646 47.647379
2024-Dec-28 00:00 21 09 57.94 +47 51 03.3 21 10 47.83 +47 57 16.9 145.4630 -181.086 15.049 n.a. 1.182200118391 8.0010656 0.85096796101852 45.9687174 79.8959 /T Cyg 3.8712488 141.22576 49.096699
2024-Dec-29 00:00 21 15 26.61 +46 40 23.7 21 16 18.20 +46 46 45.3 134.4741 -171.616 15.131 n.a. 1.186887163826 8.2315801 0.87772695636613 46.6872113 79.0225 /T Cyg 3.6337672 141.91862 50.448671
2024-Dec-30 00:00 21 20 24.58 +45 33 28.6 21 21 17.69 +45 39 57.2 124.7380 -162.475 15.211 n.a. 1.191706100058 8.4578935 0.90487079129898 47.3032437 78.1450 /T Cyg 3.4139303 142.48526 51.710526
2024-Dec-31 00:00 21 24 56.15 +44 30 08.9 21 25 50.61 +44 36 43.8 116.0847 -153.727 15.291 n.a. 1.196654491954 8.6799716 0.93234310388948 47.8263642 77.2650 /T Cyg 3.2105562 142.94224 52.889020
$$EOE
******************************************************************************************************************************************************************************************************************************
Column meaning:
TIME
Times PRIOR to 1962 are UT1, a mean-solar time closely related to the
prior but now-deprecated GMT. Times AFTER 1962 are in UTC, the current
civil or "wall-clock" time-scale. UTC is kept within 0.9 seconds of UT1
using integer leap-seconds for 1972 and later years.
Conversion from the internal Barycentric Dynamical Time (TDB) of solar
system dynamics to the non-uniform civil UT time-scale requested for output
has not been determined for UTC times after the next July or January 1st.
Therefore, the last known leap-second is used as a constant over future
intervals.
Time tags refer to the UT time-scale conversion from TDB on Earth
regardless of observer location within the solar system, although clock
rates may differ due to the local gravity field and no analog to "UT"
may be defined for that location.
Any 'b' symbol in the 1st-column denotes a B.C. date. First-column blank
(" ") denotes an A.D. date.
CALENDAR SYSTEM
Mixed calendar mode was active such that calendar dates after AD 1582-Oct-15
(if any) are in the modern Gregorian system. Dates prior to 1582-Oct-5 (if any)
are in the Julian calendar system, which is automatically extended for dates
prior to its adoption on 45-Jan-1 BC. The Julian calendar is useful for
matching historical dates. The Gregorian calendar more accurately corresponds
to the Earth's orbital motion and seasons. A "Gregorian-only" calendar mode is
available if such physical events are the primary interest.
NOTE: "n.a." in output means quantity "not available" at the print-time.
'R.A._____(ICRF)_____DEC' =
Astrometric right ascension and declination of the target center with
respect to the observing site (coordinate origin) in the reference frame of
the planetary ephemeris (ICRF). Compensated for down-leg light-time delay
aberration.
Units: RA in hours-minutes-seconds of time, HH MM SS.ff{ffff}
DEC in degrees-minutes-seconds of arc, sDD MN SC.f{ffff}
'R.A.__(a-apparent)__DEC' =
Airless apparent right ascension and declination of the target center
with respect to an instantaneous reference frame defined by the Earth equator
of-date (z-axis) and meridian containing the Earth equinox of-date (x-axis,
EOP-corrected IAU76/80). Compensated for down-leg light-time delay,
gravitational deflection of light, stellar aberration, precession & nutation.
Note: equinox (RA origin) is offset -53 mas from the of-date frame defined
by the IAU06/00a P & N system.
Units: RA in hours-minutes-seconds of time, HH MM SS.ff{ffff}
DEC in degrees-minutes-seconds of arc, sDD MN SC.f{ffff}
'dRA*cosD d(DEC)/dt' =
The angular rate of change in aparent RA and DEC of the target. This is
with respect to the non-inertial IAU76/80 Earth true equator and equinox
of-date reference frame. d(RA)/dt is multiplied by the cosine of declination
to provide a linear rate in the plane-of-sky. Units: ARCSECONDS PER HOUR
'T-mag N-mag' =
Comets' apparent visual total magnitude ("T-mag") and nuclear magnitude
("N-mag") using the standard IAU model:
T-mag= M1 + 5*log10(delta) + k1*log10(r)
N-mag= M2 + 5*log10(delta) + k2*log10(r) + phcof*beta
Units: MAGNITUDES
'r rdot' =
The Sun's apparent range ("r", light-time aberrated) and range-rate ("rdot")
relative to the target center, as seen by the observer. A positive "rdot" means
the target center was moving away from the Sun, negative means moving toward
the Sun. Units: AU and KM/S
'delta deldot' =
Apparent range ("delta", light-time aberrated) and range-rate ("delta-dot")
of the target center relative to the observer. A positive "deldot" means the
target center is moving away from the observer, negative indicates movement
toward the observer. Units: AU and KM/S
'S-O-T /r' =
Sun-Observer-Target apparent SOLAR ELONGATION ANGLE seen from the observers'
location at print-time.
The '/r' column provides a code indicating the targets' apparent position
relative to the Sun in the observers' sky, as described below:
Case A: For an observing location on the surface of a rotating body, that
body rotational sense is considered:
/T indicates target TRAILS Sun (evening sky: rises and sets AFTER Sun)
/L indicates target LEADS Sun (morning sky: rises and sets BEFORE Sun)
Case B: For an observing point that does not have a rotational model (such
as a spacecraft), the "leading" and "trailing" condition is defined by the
observers' heliocentric ORBITAL motion:
* If continuing in the observers' current direction of heliocentric
motion would encounter the targets' apparent longitude first, followed
by the Sun's, the target LEADS the Sun as seen by the observer.
* If the Sun's apparent longitude would be encountered first, followed
by the targets', the target TRAILS the Sun.
Two other codes can be output:
/* indicates observer is Sun-centered (undefined)
/? Target is aligned with Sun center (no lead or trail)
The S-O-T solar elongation angle is numerically the minimum separation
angle of the Sun and target in the sky in any direction. It does NOT indicate
the amount of separation in the leading or trailing directions, which would
be defined along the equator of a spherical coordinate system.
Units: DEGREES
'Cnst' =
Constellation ID; the 3-letter abbreviation for the name of the
constellation containing the target centers' astrometric position,
as defined by IAU (1930) boundary delineation. See documentation
for list of abbreviations.
'Sky_motion Sky_mot_PA RelVel-ANG' =
Total apparent angular rate of the target in the plane-of-sky. "Sky_mot_PA"
is the position angle of the target's direction of motion in the plane-of-sky,
measured counter-clockwise from the apparent of-date north pole direction.
"RelVel-ANG" is the flight path angle of the target's relative motion with
respect to the observer's line-of-sight, in the range [-90,+90], where positive
values indicate motion away from the observer, negative values are toward the
observer:
-90 = target is moving directly toward the observer
0 = target is moving at right angles to the observer's line-of-sight
+90 = target is moving directly away from the observer
UNITS: ARCSECONDS/MINUTE, DEGREES, DEGREES
Computations by ...
Solar System Dynamics Group, Horizons On-Line Ephemeris System
4800 Oak Grove Drive, Jet Propulsion Laboratory
Pasadena, CA 91109 USA
General site: https://ssd.jpl.nasa.gov/
Mailing list: https://ssd.jpl.nasa.gov/email_list.html
System news : https://ssd.jpl.nasa.gov/horizons/news.html
User Guide : https://ssd.jpl.nasa.gov/horizons/manual.html
Connect : browser https://ssd.jpl.nasa.gov/horizons/app.html#/x
API https://ssd-api.jpl.nasa.gov/doc/horizons.html
command-line telnet ssd.jpl.nasa.gov 6775
e-mail/batch https://ssd.jpl.nasa.gov/ftp/ssd/horizons_batch.txt
scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS
Author : Jon.D.Giorgini@jpl.nasa.gov
******************************************************************************************************************************************************************************************************************************
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