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85770 (1998 UP1)
Classification: Aten [NEO]          SPK-ID: 2085770
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 99 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3451876884342066 6.931e-07  
a .9980980243869219 1.3398e-08 au
q .6535668745180518 6.9826e-07 au
i 33.1788942296207 5.65e-05 deg
node 18.34348360886268 8.291e-06 deg
peri 234.242241796064 3.3151e-05 deg
M 335.2045030199345 6.6708e-05 deg
tp 2459025.585833612385
(2020-Jun-25.08583361)
6.7654e-05 TDB
period 364.2153294091721
1.00
7.3335e-06
2.008e-08
d
yr
n .9884262713049169 1.9902e-08 deg/d
Q 1.342629174255792 1.8023e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -4.812383751072942E-14 1.659E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      9498 days (26.00 yr)  
   first obs. used      1990-10-12  
   last obs. used      2016-10-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40495  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-11 05:58:55  

Additional Information
 Earth MOID = .0846996 au 
 Jupiter MOID = 3.77214 au 
 T_jup = 5.901 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 20.5   n/a MPO244836  

85770 (1998 UP1)          Discovered 1998-Oct-18 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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