메타데이터
| 항목 |
값 |
| Designation |
C/2005 EL173 (LONEOS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-03-05T21:31:08.184000Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:47Z |
| Obs used |
314 |
| NEO |
- |
| M1 |
7.700 |
| K1 |
9.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2006-07-01.0000000 |
| e |
1.00318367 |
| q (au) |
3.886323 |
| a (au) |
-1220.704650 |
| i (deg) |
130.676676 |
| Ω (om, deg) |
344.789896 |
| ω (w, deg) |
261.492565 |
| M (ma, deg) |
-0.005729 |
밝기
산란 + 전체 선형
$$
M_a = (5.147 + 4.894\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.147 |
| n |
4.894 |
| gf |
0.860 |
| gb |
-0.523 |
| k |
0.981 |
| δ90 |
1.001 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
20:32:43.64 |
+13:10:03.3 |
HIP 101483 |
19.75 |
| 2026-03-26 12:00 |
20:32:45.06 |
+13:10:31.7 |
HIP 101483 |
19.65 |
| 2026-03-27 00:00 |
20:32:46.45 |
+13:11:00.0 |
HIP 101483 |
19.57 |
| 2026-03-27 12:00 |
20:32:47.82 |
+13:11:28.5 |
HIP 101483 |
19.51 |
| 2026-03-28 00:00 |
20:32:49.16 |
+13:11:56.9 |
HIP 101483 |
19.47 |
| 2026-03-28 12:00 |
20:32:50.48 |
+13:12:25.4 |
HIP 101483 |
19.46 |
| 2026-03-29 00:00 |
20:32:51.78 |
+13:12:53.9 |
HIP 101483 |
19.47 |
| 2026-03-29 12:00 |
20:32:53.06 |
+13:13:22.5 |
HIP 101483 |
19.50 |
| 2026-03-30 00:00 |
20:32:54.31 |
+13:13:51.0 |
HIP 101483 |
19.55 |
| 2026-03-30 12:00 |
20:32:55.53 |
+13:14:19.7 |
HIP 101483 |
19.62 |
| 2026-03-31 00:00 |
20:32:56.73 |
+13:14:48.3 |
HIP 101483 |
19.72 |
| 2026-03-31 12:00 |
20:32:57.91 |
+13:15:16.9 |
HIP 101483 |
19.83 |
| 2026-04-01 00:00 |
20:32:59.06 |
+13:15:45.6 |
HIP 101483 |
19.96 |
| 2026-04-01 12:00 |
20:33:00.19 |
+13:16:14.3 |
HIP 101483 |
20.11 |
| 2026-04-02 00:00 |
20:33:01.30 |
+13:16:43.0 |
HIP 101483 |
20.28 |
| 2026-04-02 12:00 |
20:33:02.38 |
+13:17:11.8 |
HIP 101483 |
20.47 |
| 2026-04-03 00:00 |
20:33:03.43 |
+13:17:40.5 |
HIP 101483 |
20.67 |
| 2026-04-03 12:00 |
20:33:04.46 |
+13:18:09.3 |
HIP 101483 |
20.89 |
| 2026-04-04 00:00 |
20:33:05.47 |
+13:18:38.1 |
HIP 101483 |
21.13 |
| 2026-04-04 12:00 |
20:33:06.45 |
+13:19:06.8 |
HIP 101483 |
21.38 |
| 2026-04-05 00:00 |
20:33:07.41 |
+13:19:35.6 |
HIP 101483 |
21.64 |
| 2026-04-05 12:00 |
20:33:08.34 |
+13:20:04.4 |
HIP 101483 |
21.92 |
| 2026-04-06 00:00 |
20:33:09.24 |
+13:20:33.2 |
HIP 101483 |
22.21 |
| 2026-04-06 12:00 |
20:33:10.12 |
+13:21:02.0 |
HIP 101483 |
22.51 |
| 2026-04-07 00:00 |
20:33:10.98 |
+13:21:30.8 |
HIP 101483 |
22.82 |
| 2026-04-07 12:00 |
20:33:11.81 |
+13:21:59.6 |
HIP 101483 |
23.14 |
| 2026-04-08 00:00 |
20:33:12.61 |
+13:22:28.4 |
HIP 101483 |
23.47 |
| 2026-04-08 12:00 |
20:33:13.39 |
+13:22:57.2 |
HIP 101554 |
23.80 |
| 2026-04-09 00:00 |
20:33:14.14 |
+13:23:26.0 |
HIP 101554 |
23.53 |
| 2026-04-09 12:00 |
20:33:14.87 |
+13:23:54.8 |
HIP 101554 |
23.26 |
| 2026-04-10 00:00 |
20:33:15.57 |
+13:24:23.5 |
HIP 101554 |
23.02 |
| 2026-04-10 12:00 |
20:33:16.25 |
+13:24:52.3 |
HIP 101554 |
22.79 |
| 2026-04-11 00:00 |
20:33:16.90 |
+13:25:21.0 |
HIP 101554 |
22.57 |
| 2026-04-11 12:00 |
20:33:17.52 |
+13:25:49.8 |
HIP 101554 |
22.37 |
| 2026-04-12 00:00 |
20:33:18.12 |
+13:26:18.5 |
HIP 101554 |
22.19 |
| 2026-04-12 12:00 |
20:33:18.69 |
+13:26:47.1 |
HIP 101554 |
22.02 |
| 2026-04-13 00:00 |
20:33:19.24 |
+13:27:15.8 |
HIP 101554 |
21.87 |
| 2026-04-13 12:00 |
20:33:19.75 |
+13:27:44.4 |
HIP 101554 |
21.73 |
| 2026-04-14 00:00 |
20:33:20.25 |
+13:28:13.0 |
HIP 101554 |
21.62 |
| 2026-04-14 12:00 |
20:33:20.71 |
+13:28:41.6 |
HIP 101554 |
21.52 |
| 2026-04-15 00:00 |
20:33:21.15 |
+13:29:10.2 |
HIP 101554 |
21.43 |
| 2026-04-15 12:00 |
20:33:21.56 |
+13:29:38.7 |
HIP 101554 |
21.37 |
| 2026-04-16 00:00 |
20:33:21.95 |
+13:30:07.2 |
HIP 101554 |
21.32 |