Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260587042243117 3.3101e-08  
a 3.439110012659656 1.7434e-08 au
q 3.005580260778923 1.1602e-07 au
i 8.760126517916838 4.6381e-06 deg
node 184.1348745055271 2.472e-05 deg
peri 279.9633755379922 3.0871e-05 deg
M 336.807658804773 1.8222e-05 deg
tp 2458750.575438327804
(2019-Sep-24.07543833)
0.00011818 TDB
period 2329.525826790105
6.38
1.7714e-05
4.85e-08
d
yr
n .1545378874361098 1.1751e-09 deg/d
Q 3.872639764540389 1.9632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2502  
   data-arc span      32921 days (90.13 yr)  
   first obs. used      1929-10-09  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46086  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:24:09  

Additional Information
 Earth MOID = 2.039 au 
 Jupiter MOID = 1.37908 au 
 T_jup = 3.107 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456026.5 (2012-Apr-09.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1295411865663411 3.2677e-08  
q 2.993335708680068 1.1593e-07 au
tp 2456430.843835652942
(2013-May-18.34383565)
0.00011302 TDB
node 184.3967197257168 2.4649e-05 deg
peri 281.1453743089873 3.059e-05 deg
i 8.774534355331269 4.6464e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2502  
   data-arc span      32921 days (90.13 yr)  
   first obs. used      1929-10-09  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46086  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:24:09  

Additional Information
 Jupiter MOID = 1.37908 au 
 T_jup = 3.107 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.06779804252755E-15 -3.756107366258125E-15 1.621119987464692E-13 2.07810099931343E-16 4.047479819018997E-14 -6.759982272155843E-16
q -3.756107366258125E-15 1.343930475746656E-14 -4.954645555913871E-13 4.04495569328152E-16 -1.378316721025812E-13 1.675657518737194E-15
tp 1.621119987464692E-13 -4.954645555913871E-13 1.277386172443748E-8 -1.258507418275113E-11 2.065579534011146E-9 -1.145272344375368E-12
node 2.07810099931343E-16 4.04495569328152E-16 -1.258507418275113E-11 6.075937467894384E-10 -6.018723698910971E-10 3.815867587141792E-12
peri 4.047479819018997E-14 -1.378316721025812E-13 2.065579534011146E-9 -6.018723698910971E-10 9.357393333626898E-10 -4.025810158040008E-12
i -6.759982272155843E-16 1.675657518737194E-15 -1.145272344375368E-12 3.815867587141792E-12 -4.025810158040008E-12 2.158907260568185E-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 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-07 17:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin