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JPL Small-Body Database Browser
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1577 Reiss (1949 BA)
Classification: Main-belt Asteroid          SPK-ID: 2001577
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1668103598633225 3.1183e-08  
a 2.230044508194137 5.1141e-09 au
q 1.858049981271047 6.9275e-08 au
i 4.355683308506372 3.7329e-06 deg
node 123.5442079915556 4.5063e-05 deg
peri 266.4704685361139 4.6491e-05 deg
M 90.4196314808829 1.2234e-05 deg
tp 2458294.987520266784
(2018-Jun-25.48752027)
4.0883e-05 TDB
period 1216.378466740506
3.33
4.1842e-06
1.146e-08
d
yr
n .2959605170952109 1.0181e-09 deg/d
Q 2.602039035117228 5.9672e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2490  
   data-arc span      31995 days (87.60 yr)  
   first obs. used      1931-10-06  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47004  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:25:00  

Additional Information
 Earth MOID = .868669 au 
 Jupiter MOID = 2.83833 au 
 T_jup = 3.621 
[ 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 12.7   n/a MPO384762  
diameter diameter 5.615 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.5050 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Melton, E.; Carver, S.; Harris, A.; Karnemaat, R.; et al. (2012) Minor Planet Bull. 39, 131-133.]
geometric albedo albedo 0.322   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1577 Reiss (1949 BA)          Discovered 1949-Jan-19 by Boyer, L. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1949 BA = 1931 TG3 = 1934 PX = 1981 RM5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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