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9479 Madresplazamayo (2175 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2009479
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09236285089096309 3.242e-08  
a 2.618817873470012 1.0323e-08 au
q 2.376936388712112 8.3032e-08 au
i 4.540151540738301 4.4951e-06 deg
node 352.3885024142976 3.8458e-05 deg
peri 282.8392592560796 4.6354e-05 deg
M 158.400518773928 2.457e-05 deg
tp 2458519.400643135179
(2019-Feb-04.90064314)
0.00010609 TDB
period 1547.948014117828
4.24
9.1527e-06
2.506e-08
d
yr
n .2325659497067562 1.3751e-09 deg/d
Q 2.860699358227912 1.1276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1120  
   data-arc span      22026 days (60.30 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56222  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:48:56  

Additional Information
 Earth MOID = 1.36397 au 
 Jupiter MOID = 2.24204 au 
 T_jup = 3.395 
[ 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 15.1   n/a MPO435790  
diameter diameter 2.687 km 0.446 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.223   0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9479 Madresplazamayo (2175 P-L)          Discovered 1960-Sep-26 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 19981005/Numbers.arcLast Updated: 2004-04-19

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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
1935-Jan-22 17:13 < 00:01 Psych 0.0402814473651835 0.0402765060367453 0.0402863894926475 3.69235366991079 3.69235358856318 2427825.217211741 0.64986155307356 377.315150528084 38.0045299303909 49.6263742934227 121109.153380957 T 27 CATAB v2.0f-lin.ifort 2021-Feb-24 01:48:58 2021-Feb-24 01:48
1949-Jan-05 21:40 < 00:01 Inter 0.0193872489069185 0.0193815842583649 0.0193929135606487 5.54374330760796 5.54374317140097 2432922.402797637 0.531447225697693 282.78848626334 31.1470874116284 -3.23237811206035 11499.7907646586 T 27 CATAB v2.0f-lin.ifort 2021-Feb-24 01:48:58 2021-Feb-24 01:48
2050-Oct-01 03:24 < 00:01 Inter 0.00581372120009507 0.00581218164085598 0.00581526307859805 5.53345991546002 5.53345946040097 2470080.641414748 0.514741706005385 214.223360936861 30.9495362449317 70.6365917172165 26528.7396717574 T 27 CATAB v2.0f-lin.ifort 2021-Feb-24 01:48:58 2021-Feb-24 01:48
2084-Mar-18 00:15 00:02 Thisb 0.0258262484662579 0.0258254348617955 0.0258270621113586 2.55479903035798 2.55479892702078 2482302.510687455 1.95739079998637 377.064007407414 40.141440549291 -89.1503205806836 96105.7199443348 T 27 CATAB v2.0f-lin.ifort 2021-Feb-24 01:48:58 2021-Feb-24 01:48
2102-Sep-27 18:19 < 00:01 Juno 0.0376115251197533 0.0376090162040406 0.0376140358763694 8.13504132677459 8.13504128701286 2489069.263309520 0.755256964230641 456.537935759332 40.9856873143321 74.9303126788403 132565.790783632 T 27 CATAB v2.0f-lin.ifort 2021-Feb-24 01:48:58 2021-Feb-24 01:48
2152-Jun-26 18:50 < 00:01 Inter 0.0193553199092006 0.0193426521225443 0.0193679891816286 5.56091609362827 5.5609159576179 2507239.284708875 0.864504946195793 685.8236696034 30.9816687008767 -22.9933716467649 36692.1734344371 T 27 CATAB v2.0f-lin.ifort 2021-Feb-24 01:48:58 2021-Feb-24 01:48

Alternate Designations
 2175 P-L = 1996 AC2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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