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1456 Saldanha (1937 NG)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001456
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2205899968480587 4.1238e-08  
a 3.20614674038827 1.2931e-08 au
q 2.498902841031608 1.3251e-07 au
i 10.43759933590905 4.0286e-06 deg
node 282.4485739116208 2.247e-05 deg
peri 65.21242147036331 2.3856e-05 deg
M 124.2444127528936 8.8121e-06 deg
tp 2458276.817806102679
(2018-Jun-07.31780610)
5.1081e-05 TDB
period 2096.879723043868
5.74
1.2685e-05
3.473e-08
d
yr
n .1716836669474859 1.0386e-09 deg/d
Q 3.913390639744932 1.5783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2554  
   data-arc span      34417 days (94.23 yr)  
   first obs. used      1926-08-04  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40997  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:18:49  

Additional Information
 Earth MOID = 1.51369 au 
 Jupiter MOID = 1.65779 au 
 T_jup = 3.129 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456694.5 (2014-Feb-06.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2126905367334462 4.0108e-08  
q 2.533668982420959 1.2676e-07 au
tp 2456165.160807800402
(2012-Aug-25.66080780)
5.6756e-05 TDB
node 282.9737047662518 2.2175e-05 deg
peri 63.71805383677127 2.3953e-05 deg
i 10.49869516071889 4.0437e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2554  
   data-arc span      34417 days (94.23 yr)  
   first obs. used      1926-08-04  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40997  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:18:49  

Additional Information
 Jupiter MOID = 1.65779 au 
 T_jup = 3.129 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.608619204692278E-15 -5.067711334161593E-15 3.672684748996225E-13 -1.047402868420284E-14 1.04622311818882E-14 -2.922581775759351E-17
q -5.067711334161593E-15 1.606884985910095E-14 -1.269489035180255E-12 3.408347562109414E-14 -4.791494893812556E-14 1.043619032925822E-15
tp 3.672684748996225E-13 -1.269489035180255E-12 3.221255611442175E-9 4.740480050562011E-12 5.294010923460746E-10 -6.133696934721792E-12
node -1.047402868420284E-14 3.408347562109414E-14 4.740480050562011E-12 4.917466690264998E-10 -4.833904202933077E-10 5.96879108710983E-13
peri 1.04622311818882E-14 -4.791494893812556E-14 5.294010923460746E-10 -4.833904202933077E-10 5.737443537582943E-10 -1.263809008671655E-12
i -2.922581775759351E-17 1.043619032925822E-15 -6.133696934721792E-12 5.96879108710983E-13 -1.263809008671655E-12 1.635121708786201E-11

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 11.1   n/a MPO502167 IRAS observations used: 23
diameter diameter 37.815 km 0.329 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 19.035 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Carbognani, A.; Calcidese, P. (2007) Minor Planet Bull. 34, 5-6.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.052   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.690   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=15.37 deg.
U-B UB 0.340   0.045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=15.37 deg.
Tholen spectral type spec_T C:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1456 Saldanha           Discovered 1937 July 2 by C. Jackson at Johannesburg.
Named for a newly-developed harbor on the southwest tip of South Africa.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5182Last Updated: 2006-03-21

[ show close-approach data ]
Alternate Designations
 1937 NG = 1926 PC = 1933 XE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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