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9517 Niehaisheng (1977 VL1)
Classification: Main-belt Asteroid          SPK-ID: 2009517
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2292624776317864 3.1554e-08  
a 2.610155723433446 7.154e-09 au
q 2.011744955274306 8.2836e-08 au
i 5.803401713048321 3.154e-06 deg
node 49.97157152954511 3.4461e-05 deg
peri 329.2687945470217 3.5134e-05 deg
M 87.94996468558891 6.4615e-06 deg
tp 2458824.202595255171
(2019-Dec-06.70259526)
2.7454e-05 TDB
period 1540.274247891032
4.22
6.3325e-06
1.734e-08
d
yr
n .2337246113754857 9.609e-10 deg/d
Q 3.208566491592586 8.7942e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1981  
   data-arc span      18702 days (51.20 yr)  
   first obs. used      1970-01-04  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49802  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 00:18:46  

Additional Information
 Earth MOID = 1.01569 au 
 Jupiter MOID = 2.25516 au 
 T_jup = 3.365 
[ 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 14.24   n/a E2021B10  
diameter diameter 7.238 km 2.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.077   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

9517 Niehaisheng           Discovered 1977 Nov. 3 at the Purple Mountain Observatory.
Nie Haisheng (b. 1964) is a space hero of China. In the Shenzhou spaceship, he and Fei Junlong made a series of scientific experiments in space for five days. They landed smoothly on 2005 Oct. 17 on the grasslands in Nei Monggol, Inner Mongolia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

Alternate Designations
 1977 VL1 = 1970 AN = 4318 T-1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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