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5660 (1974 MA)
Classification: Apollo [NEO]          SPK-ID: 2005660
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 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7621000582673575 1.0611e-07  
a 1.785154960689293 4.131e-09 au
q .4246882611317205 1.8947e-07 au
i 38.13176071841984 3.3786e-05 deg
node 302.1551885293708 1.4794e-05 deg
peri 127.0294894825405 2.0569e-05 deg
M 56.96947629522051 8.4842e-06 deg
tp 2458862.635631808620
(2020-Jan-14.13563181)
2.0131e-05 TDB
period 871.188850178367
2.39
3.024e-06
8.279e-09
d
yr
n .4132284290900804 1.4344e-09 deg/d
Q 3.145621660246865 7.2792e-09 au
  Orbit Determination Parameters
   # obs. used (total)      272  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      16737 days (45.82 yr)  
   first obs. used      1974-06-26  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47212  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-23 07:01:00  

Additional Information
 Earth MOID = .162354 au 
 Jupiter MOID = 2.83702 au 
 T_jup = 3.511 
[ 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 15.5   n/a MPO473844  
rotation period rot_per 17.5 h n/a LCDB (Rev. 2019-August); 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2005) http://www.asu.cas.cz/~ppravec/neo.htm]
SMASSII spectral type spec_B Q   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

5660 (1974 MA)          Discovered 1974-Jun-26 by Kowal, C. T. at Palomar
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
1900-Jul-23 19:12 < 00:01 Earth 0.315585182039899 0.315580038766995 0.315590325342637 37.2393700413166 37.2391433187496 2415224.300109342 0.363833696461271 298.902089460036 20.5283529481458 -30.9823971926858 1160417.22344287 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1903-Feb-22 16:53 < 00:01 Earth 0.397912169638379 0.397910966706076 0.397913372609813 33.7073744988662 33.7071758429568 2416168.203800591 0.621834322171767 313.616702797875 46.124664698585 82.8983180998356 1220812.44476417 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1915-Jan-22 22:59 < 00:01 Earth 0.455296138172558 0.455293930681565 0.45529834574875 32.5144466389634 32.5142666510986 2420520.457456960 0.69194010266461 355.579032731834 43.5271667014192 -73.3511026509745 1363598.24348003 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1919-Aug-14 07:32 < 00:01 Earth 0.325365166910449 0.325360524815324 0.325369809034371 23.2886154965513 23.2882638544159 2422184.813996977 0.156553350568291 277.616625631739 20.3816615437174 33.6085314547207 1428425.65252637 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1931-Aug-02 09:55 < 00:01 Earth 0.165299382597467 0.16529747327928 0.165301292013148 31.586022589178 31.5855122608315 2426555.913329368 0.239394123680657 224.946189522088 17.8583264245089 -65.3503800375067 1233034.46712554 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1934-Mar-10 00:39 < 00:01 Earth 0.466224033221009 0.466221727381693 0.466226339091941 37.3440140717435 37.343861034339 2427506.527300816 0.39614703449316 234.925248632596 40.9014433185502 62.3203695138241 1454902.44190034 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1943-Jul-17 17:05 < 00:01 Earth 0.459559316686015 0.459556071956568 0.459562561420503 41.5646723967625 41.5645329054539 2430923.211795820 0.230203069155354 178.99631306019 23.3598407871323 -25.5536258838797 1278480.45405105 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1946-Feb-10 04:48 < 00:01 Earth 0.399504033544385 0.399502877018589 0.399505190087509 32.5157588029254 32.5155536873381 2431861.700110541 0.433157598693902 219.788056204577 45.3212351890136 -80.4543020194241 1216369.99741937 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1962-Aug-09 03:00 < 00:01 Earth 0.191749926804217 0.191748223151009 0.191751630482463 26.8940077572117 26.8934910722804 2437885.624738046 0.12070646806347 140.154762926439 16.8466892200229 53.2404912658874 1381745.39164756 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1974-Jul-25 18:49 < 00:01 Earth 0.296510949304816 0.296509334577796 0.296512564036655 36.3071066415666 36.3068591380004 2442254.283821681 0.117434385976909 101.394550469545 20.3784347605889 -38.346562188102 1352049.79073837 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1977-Feb-25 03:39 < 00:01 Earth 0.408652469652034 0.408651658806778 0.408653280498567 34.5266900456077 34.5265012010513 2443199.651906770 0.225984899200161 142.457243621071 39.0064747598223 85.543467240537 1471818.70589938 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1989-Jan-24 20:11 < 00:01 Earth 0.443614055968212 0.44361277604254 0.443615335901297 32.6234821895701 32.6232980793197 2447551.341160154 0.205726894641237 131.504275222291 39.4040218037215 -66.4099575700526 1406056.66648744 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
1993-Aug-13 18:56 < 00:01 Earth 0.337352155379425 0.337351269236452 0.337353041522878 23.1728161795734 23.1724753374636 2449213.288834811 0.051283771154164 49.6114324219675 20.8966061988655 30.0815977543378 1600044.5788344 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2005-Jul-31 23:55 < 00:01 Earth 0.187395518068281 0.187395226974148 0.187395809162425 32.1746996942769 32.1742577763317 2453583.496463296 0.0374814477169826 29.3029667425737 14.4915889841538 -88.1218588314503 1890235.05742959 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2008-Mar-07 23:54 < 00:01 Earth 0.465392123447777 0.465391422178852 0.465392824719744 37.2668945996853 37.2667409714584 2454533.495682357 0.119891300387366 104.954246490418 27.9920086180704 78.0413667561347 2269998.57833972 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2020-Feb-05 20:01 < 00:01 Earth 0.409057514780399 0.409056392005442 0.409058637560425 32.6611502866083 32.6609508532368 2458885.333891970 0.176081062064072 109.607042262007 36.2590801310558 -65.6419305371112 1418481.89059375 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2024-Aug-15 00:06 < 00:01 Earth 0.443494304912749 0.44349317893715 0.443495430889054 21.4014449873143 21.4011642603943 2460537.504332049 0.0549028696286648 64.5717218917364 26.8425791709216 32.8869760933276 1797469.79939636 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2036-Aug-04 02:01 < 00:01 Earth 0.164894298223048 0.164893930349554 0.16489466609807 29.8980858329269 29.8975453683197 2464909.583946812 0.105370029361982 96.0872759367116 17.6895408733537 -87.0521911219075 1366871.95081031 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2048-Jul-17 10:09 < 00:01 Earth 0.458768853691532 0.458766594924917 0.458771112460546 41.2576281858364 41.2574874142793 2469274.922969408 0.165801372078039 124.750440606203 24.5842321309765 -26.0069309737237 1281018.64130142 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2051-Feb-10 17:08 < 00:01 Earth 0.400299904633915 0.400298878986628 0.400300930290965 33.0060841884204 33.0058825217194 2470213.214082676 0.350686118992108 172.18075955384 40.9408543173764 -79.438587294344 1346024.53474637 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2055-Aug-15 20:06 < 00:01 Earth 0.495875255198275 0.495872443413957 0.495878066989162 20.8147978360529 20.8145396870715 2471860.337704844 0.05176558862511 167.745850987012 30.0784092897478 33.915765794595 1630850.52011102 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2067-Aug-05 21:05 < 00:01 Earth 0.172502111347201 0.17250158488896 0.172502637854 29.185642486759 29.1851132468072 2476233.378717828 0.195014969205017 194.731049270868 17.4250912776041 84.1886827096425 1453245.68494463 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2079-Jul-18 09:59 < 00:01 Earth 0.458268361630019 0.458264415981791 0.458272307286375 41.1132124661303 41.1130710458101 2480597.915814262 0.28889394947462 219.357268087432 24.1278872572658 -26.4120831243726 1255277.31227506 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2082-Feb-10 03:34 < 00:01 Earth 0.400700066276323 0.400699000454653 0.400701132123048 33.1493395703477 33.1491389756838 2481535.648619205 0.573649724297676 265.544651433982 42.2283135628399 -82.9288163347728 1325909.11351932 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2086-Aug-15 09:06 < 00:01 Earth 0.483036567005909 0.483031958796488 0.483041175235319 21.0130964528468 21.0128339433579 2483182.879327012 0.056789440151764 277.908853463836 29.4276388823481 34.4419644179139 1606825.80046477 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2098-Aug-04 06:08 < 00:01 Earth 0.178378342503129 0.178377588394653 0.178379096767705 30.0914597567494 30.0909633581373 2487554.755264893 0.306688280702812 300.373334905873 17.6543540586041 -83.6420770878502 1472833.17005288 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2113-Feb-06 03:25 < 00:01 Earth 0.40701858309065 0.407017023766348 0.407020142513143 33.0271520339383 33.0269538226902 2492853.642535450 0.842667931973877 383.97771628276 42.3829330289369 -80.1639476228399 1326924.28125243 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2117-Aug-15 10:40 < 00:01 Earth 0.41885045527243 0.418844024420655 0.418856886175776 21.9801750862047 21.9798856685122 2494504.944303416 0.123620442093325 396.130292567091 26.2751313008317 36.0404932771717 1589338.81476898 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2129-Aug-01 17:29 < 00:01 Earth 0.213092398835565 0.213088426952213 0.213096370956718 32.2557981588301 32.2554105093417 2498874.228220842 0.444729438809191 407.839130369136 18.4099096445932 -61.0504943462671 1473854.20443939 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2132-Mar-07 17:59 < 00:01 Earth 0.473250608898765 0.473246736776613 0.473254481127284 37.5605962115933 37.5604463157587 2499823.249072725 0.806221012024446 409.216721766245 37.8428651922703 62.3098111231453 1601311.93816469 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2144-Jan-29 18:16 00:01 Earth 0.425226209752432 0.425223571886358 0.425228847824373 33.0679210677103 33.0677315775412 2504168.261161767 1.09664710440326 508.868285177618 41.4190162708998 -75.7488574221197 1379288.7448511 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2148-Aug-13 07:53 < 00:01 Earth 0.326311356907063 0.326304001437427 0.326318712504184 23.7957424704059 23.7953993203777 2505825.828752770 0.271484624353278 488.21710584827 21.7657139289479 41.3476426975738 1607321.02399627 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2160-Jul-27 19:13 < 00:01 Earth 0.294522061556426 0.294515114299571 0.294529008950479 35.3432684415298 35.3430124713413 2510192.300604176 0.551690994858908 469.916567053259 19.9832624506137 -42.5521252389401 1443783.01891215 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2163-Feb-28 15:29 < 00:01 Earth 0.43206584166316 0.43206268185045 0.432069001653489 35.886966298771 35.8867944578006 2511138.144961785 0.996280857059314 477.804364830734 39.2733291635682 71.3094094277325 1501739.45516937 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2165-Apr-03 19:17 < 00:01 Mars 0.0822616234510668 0.0822560602331324 0.0822671871062804 26.0507959671035 26.0506623724658 2511903.303343524 0.482166007800847 408.843845786506 25.140206512597 -47.3863475186578 360814.888795821 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2175-Jan-19 20:32 00:01 Earth 0.45461284494733 0.454609200278553 0.454616489900211 33.3845970208075 33.3844214607729 2515481.355286367 1.24404640480602 608.260998205603 39.3603107411705 -73.0026791333091 1507002.31660616 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2179-Aug-11 02:59 < 00:01 Earth 0.245644747291478 0.245638868367104 0.245650626513326 26.0970741215542 26.0966584823408 2517145.624047698 0.400546888697086 518.07090794502 18.7245117103215 55.5908279160172 1673844.90092018 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2191-Jul-24 01:04 < 00:01 Earth 0.387061628836681 0.387053552997868 0.387069704750631 38.2463454651456 38.2461654772434 2521510.544355550 0.601875952142744 484.47280871572 21.437864731286 -33.8119210997447 1454271.9384176 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2194-Feb-20 05:18 00:01 Earth 0.405565621443002 0.405563980489969 0.405567262587635 34.5671854045686 34.5669953455871 2522452.720609108 1.11702912870831 510.153648287654 39.9198031548478 81.9257960814903 1441519.72015519 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01
2200-Dec-31 12:35 < 00:01 Mars 0.0688366974466862 0.0688361230126946 0.0688372718980864 25.1707078778958 25.1705426466578 2524958.024589649 0.470167564463011 431.003988192581 28.4134276378192 89.5155297870719 363072.173586447 T 69 CATAB v2.0f-lin.ifort 2020-Apr-23 07:01:04 2020-Apr-23 07:01

Alternate Designations
 1974 MA = 1993 OL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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