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JPL Small-Body Database Browser
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1132 Hollandia (1929 RB1)
Classification: Main-belt Asteroid          SPK-ID: 2001132
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2747192689199151 3.0181e-08  
a 2.687332370178196 8.3411e-09 au
q 1.949070386098019 8.1231e-08 au
i 7.220508190651469 4.2085e-06 deg
node 29.61485114397953 2.7821e-05 deg
peri 270.5609836639982 2.8813e-05 deg
M 154.5465964799021 8.3631e-06 deg
tp 2457909.723671959136
(2017-Jun-05.22367196)
3.6355e-05 TDB
period 1609.090615768107
4.41
7.4916e-06
2.051e-08
d
yr
n .2237288543430801 1.0416e-09 deg/d
Q 3.425594354258373 1.0633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2713  
   data-arc span      32948 days (90.21 yr)  
   first obs. used      1929-09-13  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4219  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:17:37  

Additional Information
 Earth MOID = .949433 au 
 Jupiter MOID = 1.88687 au 
 T_jup = 3.307 
[ 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 11.1   n/a MPO267711  
diameter diameter 27.235 km 0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.360 h n/a LCDB (Rev. 2019-January); 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:
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Sauppe, J.; Torno, S.; Lemke-Oliver, R.; Ditteon, R. (2007) Minor Planet Bull. 34, 119-122.]
[Clark, M. (2015) Minor Planet Bull. 42, 15-20.]
[Fauerbach, M.; Brown, A. (2018) Minor Planet Bull. 45, 240-241.]
geometric albedo albedo 0.086   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1132 Hollandia (1929 RB1)          Discovered 1929-Sep-13 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1929 RB1 = 1942 NC = 1946 JA = 1951 WA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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