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JPL Small-Body Database Browser
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2077 Kiangsu (1974 YA)
Classification: Mars-crossing Asteroid          SPK-ID: 2002077
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2949095100312113 5.2303e-08  
a 2.327855451503735 8.8689e-09 au
q 1.641348740877284 1.2256e-07 au
i 28.08735550917813 6.1537e-06 deg
node 69.46598134868155 7.7551e-06 deg
peri 344.182312764575 9.9836e-06 deg
M 297.7615302044297 9.1705e-06 deg
tp 2459224.779121575600
(2021-Jan-10.27912158)
3.4052e-05 TDB
period 1297.276170709495
3.55
7.4137e-06
2.03e-08
d
yr
n .2775045191827674 1.5859e-09 deg/d
Q 3.014362162130185 1.1484e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1377  
   data-arc span      16324 days (44.69 yr)  
   first obs. used      1974-12-18  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:11:58  

Additional Information
 Earth MOID = .663225 au 
 Jupiter MOID = 2.36326 au 
 T_jup = 3.363 
[ 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 13.6   n/a MPO279535  
diameter diameter 3.791 km 0.609 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 104.2 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:
[Stephens, R.D.; French, L.M.; Davitt, C.; Coley, D.R. (2014) Minor Planet Bull. 41, 95-100.]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 226-230.]
geometric albedo albedo 0.358   0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

2077 Kiangsu (1974 YA)          Discovered 1974-Dec-18 by Purple Mountain Observatory at Nanking
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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