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1579 Herrick (1948 SB)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001579
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260587043306717 3.319e-08  
a 3.439110012537972 1.7719e-08 au
q 3.005580260306795 1.1656e-07 au
i 8.760126580250608 4.7067e-06 deg
node 184.134874582194 2.4757e-05 deg
peri 279.9633753663304 3.1028e-05 deg
M 336.8076589290766 1.858e-05 deg
tp 2458750.575437515482
(2019-Sep-24.07543752)
0.00012053 TDB
period 2329.525826666469
6.38
1.8003e-05
4.929e-08
d
yr
n .1545378874443117 1.1943e-09 deg/d
Q 3.872639764769149 1.9953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2436  
   data-arc span      32894 days (90.06 yr)  
   first obs. used      1929-10-09  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46677  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:06:28  

Additional Information
 Earth MOID = 2.039 au 
 Jupiter MOID = 1.37908 au 
 T_jup = 3.107 
[ 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 10.68   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 14
diameter diameter 46.925 km 0.405 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.043   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.645   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=2.73 deg.
U-B UB 0.289   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=2.73 deg.
Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1579 Herrick (1948 SB)          Discovered 1948-Sep-30 by Arend, S. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1948 SB = 1925 DA = 1929 TF = 1931 BP = 1942 VS = 1950 BG = 1951 GZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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