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85508 (1997 UD7)
Classification: Main-belt Asteroid          SPK-ID: 2085508
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0340969822373044 4.4358e-08  
a 2.469609307506157 1.0386e-08 au
q 2.385403082815038 1.1378e-07 au
i 6.392242598323038 3.8992e-06 deg
node 244.1418314814023 3.3082e-05 deg
peri 127.3865438976249 5.8953e-05 deg
M 12.00157243570007 4.7892e-05 deg
tp 2459153.241878269371
(2020-Oct-30.74187827)
0.00018863 TDB
period 1417.557900364762
3.88
8.9426e-06
2.448e-08
d
yr
n .2539578805968814 1.6021e-09 deg/d
Q 2.553815532197277 1.074e-08 au
  Orbit Determination Parameters
   # obs. used (total)      893  
   data-arc span      8475 days (23.20 yr)  
   first obs. used      1997-10-23  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53937  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:13:22  

Additional Information
 Earth MOID = 1.39086 au 
 Jupiter MOID = 2.59034 au 
 T_jup = 3.475 
[ 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 15.83   n/a E2021B10  

85508 (1997 UD7)          Discovered 1997-Oct-23 by Klet at Klet
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 UD7 = 2001 VB23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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