메타데이터
| 항목 |
값 |
| Designation |
C/2001 OG108 (LONEOS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-03-15T04:56:44.543040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:10Z |
| Obs used |
882 |
| NEO |
Yes |
| M1 |
13.300 |
| K1 |
11.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2001-12-05.0000000 |
| e |
0.92526008 |
| q (au) |
0.994048 |
| a (au) |
13.300093 |
| i (deg) |
80.245059 |
| Ω (om, deg) |
10.555290 |
| ω (w, deg) |
116.419511 |
| M (ma, deg) |
357.963820 |
밝기
산란 + 전체 선형
$$
M_a = (10.668 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.668 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.831 |
| k |
0.800 |
| δ90 |
10.000 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2001-08-27 |
2002-03-15 |
+6.7643 |
-0.411 |
| 2002-03-15 |
2002-04-29 |
+26.2855 |
-0.105 |
| 2002-04-29 |
2002-06-05 |
-11.8899 |
+2.380 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
02:16:38.86 |
-57:58:20.6 |
HIP 10739 |
15.50 |
| 2026-09-20 12:00 |
02:16:32.10 |
-57:59:04.7 |
HIP 10739 |
16.65 |
| 2026-09-21 00:00 |
02:16:25.29 |
-57:59:48.3 |
HIP 10739 |
17.81 |
| 2026-09-21 12:00 |
02:16:18.44 |
-58:00:31.5 |
HIP 10739 |
18.97 |
| 2026-09-22 00:00 |
02:16:11.53 |
-58:01:14.2 |
HIP 10739 |
20.13 |
| 2026-09-22 12:00 |
02:16:04.58 |
-58:01:56.5 |
HIP 10739 |
21.29 |
| 2026-09-23 00:00 |
02:15:57.58 |
-58:02:38.4 |
HIP 10739 |
22.45 |
| 2026-09-23 12:00 |
02:15:50.53 |
-58:03:19.8 |
HIP 10739 |
23.61 |
| 2026-09-24 00:00 |
02:15:43.44 |
-58:04:00.8 |
HIP 10739 |
24.77 |
| 2026-09-24 12:00 |
02:15:36.30 |
-58:04:41.3 |
HIP 10739 |
25.93 |
| 2026-09-25 00:00 |
02:15:29.12 |
-58:05:21.3 |
HIP 10739 |
27.09 |
| 2026-09-25 12:00 |
02:15:21.89 |
-58:06:00.9 |
HIP 10739 |
28.25 |
| 2026-09-26 00:00 |
02:15:14.62 |
-58:06:40.0 |
HIP 10739 |
29.41 |
| 2026-09-26 12:00 |
02:15:07.30 |
-58:07:18.7 |
HIP 10739 |
30.57 |
| 2026-09-27 00:00 |
02:14:59.94 |
-58:07:56.9 |
HIP 10210 |
29.91 |
| 2026-09-27 12:00 |
02:14:52.54 |
-58:08:34.6 |
HIP 10210 |
29.11 |
| 2026-09-28 00:00 |
02:14:45.10 |
-58:09:11.8 |
HIP 10210 |
28.33 |
| 2026-09-28 12:00 |
02:14:37.61 |
-58:09:48.5 |
HIP 10210 |
27.57 |
| 2026-09-29 00:00 |
02:14:30.09 |
-58:10:24.8 |
HIP 10210 |
26.83 |
| 2026-09-29 12:00 |
02:14:22.52 |
-58:11:00.5 |
HIP 10210 |
26.11 |
| 2026-09-30 00:00 |
02:14:14.91 |
-58:11:35.8 |
HIP 10210 |
25.42 |
| 2026-09-30 12:00 |
02:14:07.27 |
-58:12:10.5 |
HIP 10210 |
24.76 |
| 2026-10-01 00:00 |
02:13:59.59 |
-58:12:44.8 |
HIP 10210 |
24.13 |
| 2026-10-01 12:00 |
02:13:51.86 |
-58:13:18.5 |
HIP 10210 |
23.53 |
| 2026-10-02 00:00 |
02:13:44.11 |
-58:13:51.8 |
HIP 10210 |
22.96 |
| 2026-10-02 12:00 |
02:13:36.31 |
-58:14:24.5 |
HIP 10210 |
22.43 |
| 2026-10-03 00:00 |
02:13:28.48 |
-58:14:56.7 |
HIP 10210 |
21.95 |
| 2026-10-03 12:00 |
02:13:20.61 |
-58:15:28.4 |
HIP 10210 |
21.50 |
| 2026-10-04 00:00 |
02:13:12.71 |
-58:15:59.6 |
HIP 10210 |
21.10 |
| 2026-10-04 12:00 |
02:13:04.77 |
-58:16:30.2 |
HIP 10210 |
20.76 |
| 2026-10-05 00:00 |
02:12:56.80 |
-58:17:00.3 |
HIP 10210 |
20.46 |
| 2026-10-05 12:00 |
02:12:48.80 |
-58:17:29.9 |
HIP 10210 |
20.21 |
| 2026-10-06 00:00 |
02:12:40.76 |
-58:17:58.9 |
HIP 10210 |
20.02 |
| 2026-10-06 12:00 |
02:12:32.69 |
-58:18:27.4 |
HIP 10210 |
19.89 |
| 2026-10-07 00:00 |
02:12:24.59 |
-58:18:55.4 |
HIP 10210 |
19.81 |
| 2026-10-07 12:00 |
02:12:16.47 |
-58:19:22.8 |
HIP 10210 |
19.80 |
| 2026-10-08 00:00 |
02:12:08.31 |
-58:19:49.6 |
HIP 10210 |
19.84 |
| 2026-10-08 12:00 |
02:12:00.12 |
-58:20:15.9 |
HIP 10210 |
19.94 |
| 2026-10-09 00:00 |
02:11:51.90 |
-58:20:41.6 |
HIP 10210 |
20.10 |
| 2026-10-09 12:00 |
02:11:43.66 |
-58:21:06.8 |
HIP 10210 |
20.31 |
| 2026-10-10 00:00 |
02:11:35.39 |
-58:21:31.4 |
HIP 10210 |
20.58 |
| 2026-10-10 12:00 |
02:11:27.10 |
-58:21:55.5 |
HIP 10210 |
20.90 |
| 2026-10-11 00:00 |
02:11:18.78 |
-58:22:19.0 |
HIP 10210 |
21.27 |