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101978 (1999 RZ52)
Classification: Main-belt Asteroid          SPK-ID: 2101978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1434053449922776 4.1259e-08  
a 2.211252073346273 7.9e-09 au
q 1.894146706903161 9.0104e-08 au
i 4.429813014330667 4.2746e-06 deg
node 334.9114472503551 6.0587e-05 deg
peri 13.49192549437707 6.2632e-05 deg
M 98.00135429704207 1.5425e-05 deg
tp 2458673.546957485245
(2019-Jul-09.04695749)
5.1536e-05 TDB
period 1201.03539537376
3.29
6.4363e-06
1.762e-08
d
yr
n .2997413743064322 1.6063e-09 deg/d
Q 2.528357439789384 9.033e-09 au
  Orbit Determination Parameters
   # obs. used (total)      874  
   data-arc span      7975 days (21.83 yr)  
   first obs. used      1998-03-29  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4743  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:29:36  

Additional Information
 Earth MOID = .887687 au 
 Jupiter MOID = 2.86978 au 
 T_jup = 3.640 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO439697  
rotation period rot_per 5.42 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

101978 (1999 RZ52)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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