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1428 Mombasa (1937 NO)
Classification: Main-belt Asteroid          SPK-ID: 2001428
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1410663952720053 3.9358e-08  
a 2.809770698063583 1.0878e-08 au
q 2.413406474146847 1.092e-07 au
i 17.30657109686945 4.4138e-06 deg
node 115.7101508745534 1.4212e-05 deg
peri 252.4705572014436 2.1018e-05 deg
M 155.0030127370027 1.6798e-05 deg
tp 2458259.799932470657
(2018-May-21.29993247)
7.9142e-05 TDB
period 1720.302203177163
4.71
9.9904e-06
2.735e-08
d
yr
n .2092655577230147 1.2153e-09 deg/d
Q 3.206134921980318 1.2413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2441  
   data-arc span      31490 days (86.21 yr)  
   first obs. used      1933-11-18  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36689  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:54:29  

Additional Information
 Earth MOID = 1.47222 au 
 Jupiter MOID = 2.34546 au 
 T_jup = 3.241 
[ 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 10.3   n/a MPO337256  
diameter diameter 52.464 km 0.268 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 16.67 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:
[Hawkins, S.; Ditteon, R. (2008) Minor Planet Bull. 35, 1-4.]
[Stephens, R.D. (2012) Posting on CALL web site. http://www.minorplanet.info/call.html]
geometric albedo albedo 0.038   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Xc   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1428 Mombasa (1937 NO)          Discovered 1937-Jul-05 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1937 NO = 1933 WO = 1949 FA = 1957 YZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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