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70156 (1999 NR37)
Classification: Main-belt Asteroid          SPK-ID: 2070156
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1366116734303157 4.6274e-08  
a 2.203412205272086 8.8537e-09 au
q 1.902400376653084 1.0095e-07 au
i 5.641103493409662 3.4614e-06 deg
node 305.0323915427632 5.3155e-05 deg
peri 289.6487691195938 5.501e-05 deg
M 192.2778060414244 1.5066e-05 deg
tp 2459557.083191820338
(2021-Dec-08.58319182)
5.0897e-05 TDB
period 1194.653756465941
3.27
7.2005e-06
1.971e-08
d
yr
n .3013425421813951 1.8163e-09 deg/d
Q 2.504424033891088 1.0063e-08 au
  Orbit Determination Parameters
   # obs. used (total)      958  
   data-arc span      7531 days (20.62 yr)  
   first obs. used      1999-06-22  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54531  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:04:56  

Additional Information
 Earth MOID = .899721 au 
 Jupiter MOID = 2.52219 au 
 T_jup = 3.645 
[ 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 15.6   n/a MPO502589  
rotation period rot_per 3.37 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

70156 (1999 NR37)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NR37 = 2000 WC196 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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