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58681 (1998 AJ7)
Classification: Main-belt Asteroid          SPK-ID: 2058681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1733182138782152 3.0422e-08  
a 2.607104661592202 1.1922e-08 au
q 2.155245938251472 7.9233e-08 au
i 3.539581723014568 4.0734e-06 deg
node 319.6551497845941 5.6221e-05 deg
peri 88.39531301784905 5.7949e-05 deg
M 206.5806535401485 1.5882e-05 deg
tp 2459855.760145232318
(2022-Oct-03.26014523)
7.0915e-05 TDB
period 1537.574352432571
4.21
1.0547e-05
2.888e-08
d
yr
n .234135018856454 1.606e-09 deg/d
Q 3.058963384932931 1.3989e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1248  
   data-arc span      8719 days (23.87 yr)  
   first obs. used      1996-08-09  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:50:05  

Additional Information
 Earth MOID = 1.16784 au 
 Jupiter MOID = 2.33717 au 
 T_jup = 3.387 
[ 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 14.91   n/a E2021B10  

58681 (1998 AJ7)          Discovered 1998-Jan-05 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20030614/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
2131-Sep-17 11:46 < 00:01 Juno 0.0170999117520839 0.0170793613646306 0.0171204998198913 5.84832771859553 5.8483275969432 2499650.990051434 0.931871305481347 1629.03394334493 34.8330513813323 51.0132275800836 57062.8663931541 T 26 CATAB v2.0f-lin.ifort 2020-Nov-12 22:50:09 2020-Nov-12 22:50

Alternate Designations
 1998 AJ7 = 1997 YJ20 = 2001 TQ37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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