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JPL Small-Body Database Browser
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1625 The NORC (1953 RB)
Classification: Main-belt Asteroid          SPK-ID: 2001625
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2294283287515847 3.9267e-08  
a 3.189460747447092 1.6633e-08 au
q 2.457708098541526 1.3086e-07 au
i 15.55970615079676 4.82e-06 deg
node 320.7516187153017 1.5597e-05 deg
peri 286.4409413728837 1.9329e-05 deg
M 320.5091536740017 1.458e-05 deg
tp 2459228.727650697691
(2021-Jan-14.22765070)
8.4969e-05 TDB
period 2080.531614159871
5.70
1.6275e-05
4.456e-08
d
yr
n .1730326987342462 1.3535e-09 deg/d
Q 3.921213396352659 2.0449e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2548  
   data-arc span      38482 days (105.36 yr)  
   first obs. used      1914-09-25  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43109  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:00:04  

Additional Information
 Earth MOID = 1.49861 au 
 Jupiter MOID = 1.61613 au 
 T_jup = 3.100 
[ 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 10.4   n/a MPO502169  
diameter diameter 53.317 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 13.959 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Higgins, D. (2011) Minor Planet Bull. 38, 41-46.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.023   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.732   0.059 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.11, mean=5.18, max.=5.24) deg.
U-B UB 0.311   0.044 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.11, mean=5.18, max.=5.24) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices

1625 The NORC (1953 RB)          Discovered 1953-Sep-01 by Arend, S. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1953 RB = 1929 CA = 1935 EN = 1936 QS = 1942 RK = 1947 NG = 1953 QK = 1954 UL1 = A914 SA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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