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72816 (2001 GJ9)
Classification: Main-belt Asteroid          SPK-ID: 2072816
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07191071045369032 4.88e-08  
a 3.083621586146145 2.4677e-08 au
q 2.861876167116041 1.4112e-07 au
i 8.313486580488279 5.8181e-06 deg
node 192.6756955509325 2.8885e-05 deg
peri 109.3903268301819 5.2403e-05 deg
M 183.7020884872261 4.6685e-05 deg
tp 2460365.078243135301
(2024-Feb-24.57824314)
0.00025998 TDB
period 1977.834930298897
5.42
2.3742e-05
6.5e-08
d
yr
n .1820172120964592 2.1849e-09 deg/d
Q 3.30536700517625 2.6452e-08 au
  Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      7716 days (21.13 yr)  
   first obs. used      2000-02-02  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56437  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:50:36  

Additional Information
 Earth MOID = 1.86059 au 
 Jupiter MOID = 1.88117 au 
 T_jup = 3.207 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.41   n/a MPCxxxxx  
diameter diameter 10.084 km 0.432 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72816 (2001 GJ9)          Discovered 2001-Apr-15 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1917-Jul-23 13:56 00:03 Jupiter 1.89456189415378 1.89456138922364 1.89456239908467 3.6495116981305 3.52487925413987 2421433.080869561 3.47722214983159 199.785453768816 20.083346044786 85.4471404127138 2475457.67031646 T 31 CATAB v2.0g-lin.ifort 2021-Jul-08 22:50:38 2021-Jul-08 22:50
1977-Apr-11 16:41 00:01 Jupiter 1.91244537687331 1.91244484815304 1.91244590559391 3.36330507380166 3.22893489326986 2443245.195328700 1.37937019261161 78.1265828598888 19.4421763907508 79.0269479524737 2687704.84694156 T 31 CATAB v2.0g-lin.ifort 2021-Jul-08 22:50:38 2021-Jul-08 22:50
2037-Jan-01 17:29 < 00:01 Jupiter 1.94242683704633 1.94242636331213 1.94242731078064 3.09213923237406 2.94774438083004 2465060.228724991 0.850183314321415 62.371551118457 15.4490402042043 80.5022996904367 2666385.11681435 T 31 CATAB v2.0g-lin.ifort 2021-Jul-08 22:50:38 2021-Jul-08 22:50
2046-Nov-12 10:08 00:01 Jupiter 1.98051078888227 1.98051020999017 1.98051136777437 4.45749940114593 4.36049805381593 2468661.922523730 1.11999441491332 83.6027660126324 24.8604773555303 -84.1497646821737 2870012.92164172 T 31 CATAB v2.0g-lin.ifort 2021-Jul-08 22:50:38 2021-Jul-08 22:50
2096-Sep-26 04:46 00:03 Jupiter 1.97825859114619 1.9782580224181 1.97825915987451 2.89793337942746 2.74621310799545 2486877.698519514 3.08546271313615 58.062914533366 26.9610642176466 70.8896468157821 2569401.06723469 T 31 CATAB v2.0g-lin.ifort 2021-Jul-08 22:50:38 2021-Jul-08 22:50
2106-Jul-27 04:09 00:03 Jupiter 1.94389321823035 1.9438924890565 1.94389394740829 4.24925198723514 4.14543993390014 2490467.672927250 3.184176270389 221.007981390011 24.223206895094 -84.8357766600772 2705993.35030725 T 31 CATAB v2.0g-lin.ifort 2021-Jul-08 22:50:38 2021-Jul-08 22:50
2166-Apr-10 13:19 00:05 Jupiter 1.92554656852186 1.92554590316931 1.92554723388261 3.98792305000276 3.87604910445776 2512275.055005837 5.31743239704869 338.627763485408 22.9122988426743 -88.4474339155378 2562814.72961568 T 31 CATAB v2.0g-lin.ifort 2021-Jul-08 22:50:38 2021-Jul-08 22:50

Alternate Designations
 2001 GJ9 = 2000 CY42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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