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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1258787568293012 3.2028e-08  
a 3.438264265090908 1.5182e-08 au
q 3.005459833750654 1.1019e-07 au
i 8.760904273045767 4.019e-06 deg
node 184.1206240328884 2.3375e-05 deg
peri 279.8466841285293 2.8981e-05 deg
M 38.73829707398171 1.5618e-05 deg
tp 2458749.920619212707
(2019-Sep-23.42061921)		 0.00010105 TDB
period 2328.666562475546
6.38		 1.5424e-05
4.223e-08		 d
yr
n .1545949110109148 1.0239e-09 deg/d
Q 3.871068696431162 1.7093e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2964  
   data-arc span      33276 days (91.10 yr)  
   first obs. used      1929-10-09  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43171  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 19:39:36  

Additional Information
 Earth MOID = 2.03873 au 
 Jupiter MOID = 1.37954 au 
 T_jup = 3.107 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456559.5 (2013-Sep-24.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1278557634191416 3.2009e-08  
q 2.997776719046266 1.106e-07 au
tp 2456425.729462116869
(2013-May-13.22946212)		 0.00010065 TDB
node 184.1682766465523 2.3385e-05 deg
peri 280.2953419193416 2.8822e-05 deg
i 8.760300736534633 4.0189e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2964  
   data-arc span      33276 days (91.10 yr)  
   first obs. used      1929-10-09  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43171  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 19:39:36  

Additional Information
 Jupiter MOID = 1.37954 au 
 T_jup = 3.107 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.024583705797465E-15 -3.515286868304768E-15 5.895327582733189E-13 -3.158697917095497E-15 1.013694837879302E-13 -6.643486071822348E-16
q -3.515286868304768E-15 1.223213631854474E-14 -2.256030472018132E-12 1.040505601072274E-14 -3.85148930521531E-13 2.129988772690907E-15
tp 5.895327582733189E-13 -2.256030472018132E-12 1.013029381512956E-8 -1.849437667785115E-11 1.713659762872591E-9 -5.547392124665312E-13
node -3.158697917095497E-15 1.040505601072274E-14 -1.849437667785115E-11 5.468650277240851E-10 -5.431874003331219E-10 -1.367387921461971E-11
peri 1.013694837879302E-13 -3.85148930521531E-13 1.713659762872591E-9 -5.431874003331219E-10 8.307162803052724E-10 1.346226491063638E-11
i -6.643486071822348E-16 2.129988772690907E-15 -5.547392124665312E-13 -1.367387921461971E-11 1.346226491063638E-11 1.615171896024763E-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 10.7   n/a MPO502168 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)  
rotation period rot_per 21.33 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
[Polakis, T. (2020) Minor Planet Bull. 47, 177-186.]
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1903-Jul-16 02:25 00:03 Jupiter 1.41328893921895 1.4132881311252 1.41328974732338 2.50260538495837 2.25041758220963 2416311.600564457 2.75401278303246 248.042121286198 23.997817152487 -88.6239528028762 2021947.79295165 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
1917-Mar-20 03:25 00:02 Jupiter 1.86286578486244 1.86286444089412 1.86286712883277 4.22264576261181 4.11355824725567 2421307.642392961 2.24969809881949 124.188070424814 19.4410685728676 61.0080637156871 3931900.49703419 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
1971-Apr-26 21:18 00:01 Jupiter 1.65514687165154 1.65514626055378 1.65514748274902 2.36735592148338 2.14029734491965 2441068.387169922 1.15311072593077 77.3571938401501 19.2426304201163 -87.3847329519837 1717933.70979111 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
1985-Apr-19 00:42 < 00:01 Jupiter 1.37188029536626 1.37187975959165 1.37188083139338 1.11613183578986 0.104478889056857 2446174.528952638 0.892117041167592 267892.243368772 1229.36468104178 5.79674021514781 10197932.2113633 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
1999-Feb-01 22:30 < 00:01 Jupiter 1.50175335886737 1.50175291239152 1.50175380534331 3.07843180801061 2.8894112930434 2451211.437769283 0.401541621909196 49.4191552681569 16.9169429422157 80.5926641645301 2818123.16182399 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
2053-Mar-16 09:29 < 00:01 Jupiter 1.94124840714063 1.94124778695954 1.94124902732194 3.71890157702251 3.59966268057793 2470977.895013629 0.836466356655959 65.8655709267739 20.7558646138407 74.9543563681447 3054718.29369598 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
2066-Dec-02 05:36 00:01 Jupiter 1.56664354259934 1.56664281699507 1.56664426820237 1.49423224835602 1.0730371439738 2475986.733534702 1.44878734042712 277.112534339651 71.8436604252824 12.8165098637047 1230789.0983566 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
2080-Dec-02 06:28 00:02 Jupiter 1.31252600757928 1.31252554120008 1.31252647395848 1.98002629448274 1.62167466696942 2481100.769587633 1.70651323944199 186.174798016243 65.5436268528911 -69.8994673363661 1512304.02968821 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
2094-Aug-18 21:22 00:02 Jupiter 1.66013483464599 1.66013356034853 1.66013610894619 3.47071576452795 3.32045806294422 2486108.390257318 2.01170668131752 132.392676314243 18.565732925192 66.4842406876807 3085720.27375341 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
2148-Sep-19 16:03 00:03 Jupiter 1.84506248200519 1.84506102441427 1.84506393960157 3.12882749828954 2.97849139982036 2505863.168510182 3.18602477017906 193.198419230933 21.308114299102 77.0942486325248 2322088.40415119 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
2162-Aug-15 04:43 00:05 Jupiter 1.4594167200584 1.45941518015438 1.45941825997066 0.909964020127996 n/a 2510940.696684034 4.51110198331765 220.449112802137 42.035248831759 -72.7253319346401 4966595.25291907 F 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
2176-Jun-18 01:55 00:04 Jupiter 1.33058831567761 1.33058711616202 1.33058951523336 2.53363208678515 2.26850978683542 2515996.579874692 3.98296314428901 417.16649574041 21.819601201865 87.8615943344627 2149630.85572145 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39
2190-Mar-07 16:33 00:04 Jupiter 1.83952689609264 1.83952425869597 1.83952953349329 3.75437594049618 3.62965911183688 2521007.189633804 4.35029895903532 192.281787419353 19.9648344286235 51.9677899763565 2948775.91940798 T 39 CATAB v2.0f-lin.ifort 2020-Dec-17 19:39:44 2020-Dec-17 19:39

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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