메타데이터
| 항목 |
값 |
| Designation |
C/2003 L2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2004-01-19T04:34:34.224960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:31Z |
| Obs used |
492 |
| NEO |
- |
| M1 |
12.700 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2003-09-17.0000000 |
| e |
0.98145123 |
| q (au) |
2.864798 |
| a (au) |
154.446795 |
| i (deg) |
82.051084 |
| Ω (om, deg) |
273.559217 |
| ω (w, deg) |
119.840959 |
| M (ma, deg) |
359.936229 |
밝기
산란 + 전체 선형
$$
M_a = (9.617 + 3.294\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.617 |
| n |
3.294 |
| gf |
0.995 |
| gb |
-0.618 |
| k |
1.000 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
07:09:32.66 |
-65:58:57.3 |
HIP 34679 |
22.13 |
| 2026-05-12 12:00 |
07:09:36.77 |
-65:58:24.2 |
HIP 34679 |
22.49 |
| 2026-05-13 00:00 |
07:09:40.93 |
-65:57:51.2 |
HIP 34679 |
22.86 |
| 2026-05-13 12:00 |
07:09:45.13 |
-65:57:18.5 |
HIP 34679 |
23.25 |
| 2026-05-14 00:00 |
07:09:49.38 |
-65:56:46.0 |
HIP 34679 |
23.64 |
| 2026-05-14 12:00 |
07:09:53.67 |
-65:56:13.7 |
HIP 34679 |
24.05 |
| 2026-05-15 00:00 |
07:09:58.01 |
-65:55:41.6 |
HIP 34679 |
24.46 |
| 2026-05-15 12:00 |
07:10:02.39 |
-65:55:09.8 |
HIP 34679 |
24.87 |
| 2026-05-16 00:00 |
07:10:06.82 |
-65:54:38.2 |
HIP 34679 |
25.30 |
| 2026-05-16 12:00 |
07:10:11.29 |
-65:54:06.8 |
HIP 34679 |
25.73 |
| 2026-05-17 00:00 |
07:10:15.80 |
-65:53:35.7 |
HIP 34679 |
26.17 |
| 2026-05-17 12:00 |
07:10:20.36 |
-65:53:04.7 |
HIP 34679 |
26.62 |
| 2026-05-18 00:00 |
07:10:24.96 |
-65:52:34.0 |
HIP 34679 |
27.07 |
| 2026-05-18 12:00 |
07:10:29.60 |
-65:52:03.6 |
HIP 34679 |
27.53 |
| 2026-05-19 00:00 |
07:10:34.28 |
-65:51:33.4 |
HIP 34679 |
27.99 |
| 2026-05-19 12:00 |
07:10:39.00 |
-65:51:03.4 |
HIP 34679 |
28.46 |
| 2026-05-20 00:00 |
07:10:43.76 |
-65:50:33.7 |
HIP 34679 |
28.93 |
| 2026-05-20 12:00 |
07:10:48.57 |
-65:50:04.2 |
HIP 34679 |
29.40 |
| 2026-05-21 00:00 |
07:10:53.41 |
-65:49:35.0 |
HIP 34679 |
29.89 |
| 2026-05-21 12:00 |
07:10:58.29 |
-65:49:06.0 |
HIP 34679 |
30.37 |
| 2026-05-22 00:00 |
07:11:03.22 |
-65:48:37.3 |
HIP 34679 |
30.86 |
| 2026-05-22 12:00 |
07:11:08.18 |
-65:48:08.8 |
HIP 34679 |
31.35 |
| 2026-05-23 00:00 |
07:11:13.18 |
-65:47:40.6 |
HIP 34679 |
31.85 |
| 2026-05-23 12:00 |
07:11:18.21 |
-65:47:12.6 |
HIP 34679 |
32.35 |
| 2026-05-24 00:00 |
07:11:23.29 |
-65:46:44.9 |
HIP 34679 |
32.85 |
| 2026-05-24 12:00 |
07:11:28.40 |
-65:46:17.5 |
HIP 34679 |
33.35 |
| 2026-05-25 00:00 |
07:11:33.55 |
-65:45:50.3 |
HIP 34679 |
33.86 |
| 2026-05-25 12:00 |
07:11:38.74 |
-65:45:23.4 |
HIP 34679 |
34.37 |
| 2026-05-26 00:00 |
07:11:43.96 |
-65:44:56.7 |
HIP 34679 |
34.88 |
| 2026-05-26 12:00 |
07:11:49.22 |
-65:44:30.3 |
HIP 34679 |
35.40 |
| 2026-05-27 00:00 |
07:11:54.51 |
-65:44:04.2 |
HIP 34679 |
35.92 |
| 2026-05-27 12:00 |
07:11:59.84 |
-65:43:38.3 |
HIP 35133 |
36.19 |
| 2026-05-28 00:00 |
07:12:05.20 |
-65:43:12.7 |
HIP 35232 |
35.94 |
| 2026-05-28 12:00 |
07:12:10.60 |
-65:42:47.4 |
HIP 35232 |
35.24 |
| 2026-05-29 00:00 |
07:12:16.03 |
-65:42:22.4 |
HIP 35232 |
34.54 |
| 2026-05-29 12:00 |
07:12:21.49 |
-65:41:57.6 |
HIP 35232 |
33.85 |
| 2026-05-30 00:00 |
07:12:26.99 |
-65:41:33.1 |
HIP 35232 |
33.15 |
| 2026-05-30 12:00 |
07:12:32.52 |
-65:41:08.9 |
HIP 35232 |
32.45 |
| 2026-05-31 00:00 |
07:12:38.08 |
-65:40:45.0 |
HIP 35232 |
31.76 |
| 2026-05-31 12:00 |
07:12:43.67 |
-65:40:21.3 |
HIP 35232 |
31.06 |
| 2026-06-01 00:00 |
07:12:49.30 |
-65:39:58.0 |
HIP 35232 |
30.36 |
| 2026-06-01 12:00 |
07:12:54.96 |
-65:39:34.9 |
HIP 35232 |
29.66 |
| 2026-06-02 00:00 |
07:13:00.65 |
-65:39:12.1 |
HIP 35232 |
28.96 |