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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1667903737050098 2.9171e-08  
a 2.229924183768726 4.8367e-09 au
q 1.857994295824101 6.5189e-08 au
i 4.35581370216196 2.8993e-06 deg
node 123.544592569434 4.3e-05 deg
peri 266.3846541142883 4.4057e-05 deg
M 208.9230857109519 1.1653e-05 deg
tp 2459510.921757141946
(2021-Oct-23.42175714)
4.0414e-05 TDB
period 1216.280021575879
3.33
3.9572e-06
1.083e-08
d
yr
n .2959844720079873 9.6299e-10 deg/d
Q 2.601854071713351 5.6434e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2988  
   data-arc span      32478 days (88.92 yr)  
   first obs. used      1931-10-06  
   last obs. used      2020-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45589  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:17:36  

Additional Information
 Earth MOID = .86927 au 
 Jupiter MOID = 2.84058 au 
 T_jup = 3.621 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456687.5 (2014-Jan-30.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660301308399393 2.9083e-08  
q 1.860163685520755 6.4952e-08 au
tp 2457077.232721821630
(2015-Feb-23.73272182)
3.6163e-05 TDB
node 123.5945593483341 4.2962e-05 deg
peri 266.183933517135 4.4037e-05 deg
i 4.356751215903767 2.9006e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2988  
   data-arc span      32478 days (88.92 yr)  
   first obs. used      1931-10-06  
   last obs. used      2020-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45589  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:17:36  

Additional Information
 Jupiter MOID = 2.84058 au 
 T_jup = 3.621 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.458317116927311E-16 -1.885301218428396E-15 -3.556339752549159E-14 3.907395325288171E-17 -1.657624123200782E-14 3.610530920775831E-17
q -1.885301218428396E-15 4.218736522149404E-15 1.5278019228209E-13 -3.553459103913158E-16 5.490608050178185E-14 -6.909210797048064E-17
tp -3.556339752549159E-14 1.5278019228209E-13 1.307756596202151E-9 -3.263065249298623E-12 3.610698072819018E-10 -8.955954243257798E-14
node 3.907395325288171E-17 -3.553459103913158E-16 -3.263065249298623E-12 1.845743889472932E-9 -1.840787202374973E-9 7.738858258734989E-12
peri -1.657624123200782E-14 5.490608050178185E-14 3.610698072819018E-10 -1.840787202374973E-9 1.939287141932581E-9 -7.748506523963548E-12
i 3.610530920775831E-17 -6.909210797048064E-17 -8.955954243257798E-14 7.738858258734989E-12 -7.748506523963548E-12 8.413195897777181E-12

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 12.6   n/a MPO473785  
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-August); 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.]
[Benishek, V. (2019) Minor Planet Bull. 46, 341-345.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
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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