메타데이터
| 항목 |
값 |
| Designation |
C/1999 S3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1999-11-09T00:22:32.453760Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:01Z |
| Obs used |
638 |
| NEO |
- |
| M1 |
4.800 |
| K1 |
29.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1999-10-24.0000000 |
| e |
0.89996276 |
| q (au) |
1.894944 |
| a (au) |
18.942389 |
| i (deg) |
70.560909 |
| Ω (om, deg) |
11.878195 |
| ω (w, deg) |
44.128165 |
| M (ma, deg) |
359.808532 |
밝기
산란 + 전체 선형
$$
M_a = (7.393 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.393 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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) |
| 2026-03-26 00:00 |
12:33:23.39 |
-41:42:41.0 |
HIP 61357 |
13.55 |
| 2026-03-26 12:00 |
12:33:18.81 |
-41:42:29.8 |
HIP 61357 |
14.35 |
| 2026-03-27 00:00 |
12:33:14.22 |
-41:42:18.2 |
HIP 61357 |
15.17 |
| 2026-03-27 12:00 |
12:33:09.63 |
-41:42:06.4 |
HIP 61357 |
15.99 |
| 2026-03-28 00:00 |
12:33:05.04 |
-41:41:54.2 |
HIP 61357 |
16.82 |
| 2026-03-28 12:00 |
12:33:00.45 |
-41:41:41.8 |
HIP 61357 |
17.66 |
| 2026-03-29 00:00 |
12:32:55.86 |
-41:41:29.0 |
HIP 61280 |
17.75 |
| 2026-03-29 12:00 |
12:32:51.27 |
-41:41:15.9 |
HIP 61280 |
17.86 |
| 2026-03-30 00:00 |
12:32:46.67 |
-41:41:02.5 |
HIP 61280 |
18.02 |
| 2026-03-30 12:00 |
12:32:42.08 |
-41:40:48.8 |
HIP 61280 |
18.21 |
| 2026-03-31 00:00 |
12:32:37.49 |
-41:40:34.8 |
HIP 61101 |
17.96 |
| 2026-03-31 12:00 |
12:32:32.90 |
-41:40:20.5 |
HIP 61101 |
17.12 |
| 2026-04-01 00:00 |
12:32:28.31 |
-41:40:05.8 |
HIP 61101 |
16.29 |
| 2026-04-01 12:00 |
12:32:23.72 |
-41:39:50.9 |
HIP 61101 |
15.46 |
| 2026-04-02 00:00 |
12:32:19.13 |
-41:39:35.7 |
HIP 61101 |
14.63 |
| 2026-04-02 12:00 |
12:32:14.55 |
-41:39:20.2 |
HIP 61101 |
13.81 |
| 2026-04-03 00:00 |
12:32:09.97 |
-41:39:04.4 |
HIP 61101 |
12.99 |
| 2026-04-03 12:00 |
12:32:05.39 |
-41:38:48.2 |
HIP 61101 |
12.19 |
| 2026-04-04 00:00 |
12:32:00.81 |
-41:38:31.8 |
HIP 61101 |
11.39 |
| 2026-04-04 12:00 |
12:31:56.24 |
-41:38:15.1 |
HIP 61101 |
10.61 |
| 2026-04-05 00:00 |
12:31:51.68 |
-41:37:58.1 |
HIP 61101 |
9.84 |
| 2026-04-05 12:00 |
12:31:47.11 |
-41:37:40.9 |
HIP 61101 |
9.10 |
| 2026-04-06 00:00 |
12:31:42.56 |
-41:37:23.3 |
HIP 61101 |
8.38 |
| 2026-04-06 12:00 |
12:31:38.01 |
-41:37:05.4 |
HIP 61101 |
7.70 |
| 2026-04-07 00:00 |
12:31:33.46 |
-41:36:47.3 |
HIP 61101 |
7.06 |
| 2026-04-07 12:00 |
12:31:28.92 |
-41:36:28.9 |
HIP 61101 |
6.48 |
| 2026-04-08 00:00 |
12:31:24.38 |
-41:36:10.1 |
HIP 61101 |
5.98 |
| 2026-04-08 12:00 |
12:31:19.86 |
-41:35:51.2 |
HIP 61101 |
5.58 |
| 2026-04-09 00:00 |
12:31:15.34 |
-41:35:31.9 |
HIP 61101 |
5.29 |
| 2026-04-09 12:00 |
12:31:10.82 |
-41:35:12.4 |
HIP 61101 |
5.15 |
| 2026-04-10 00:00 |
12:31:06.32 |
-41:34:52.5 |
HIP 61101 |
5.16 |
| 2026-04-10 12:00 |
12:31:01.82 |
-41:34:32.4 |
HIP 61101 |
5.32 |
| 2026-04-11 00:00 |
12:30:57.33 |
-41:34:12.1 |
HIP 61101 |
5.62 |
| 2026-04-11 12:00 |
12:30:52.85 |
-41:33:51.4 |
HIP 61101 |
6.03 |
| 2026-04-12 00:00 |
12:30:48.38 |
-41:33:30.6 |
HIP 61101 |
6.55 |
| 2026-04-12 12:00 |
12:30:43.92 |
-41:33:09.4 |
HIP 61101 |
7.14 |
| 2026-04-13 00:00 |
12:30:39.47 |
-41:32:48.0 |
HIP 61101 |
7.78 |
| 2026-04-13 12:00 |
12:30:35.03 |
-41:32:26.3 |
HIP 61101 |
8.47 |
| 2026-04-14 00:00 |
12:30:30.60 |
-41:32:04.3 |
HIP 61101 |
9.20 |
| 2026-04-14 12:00 |
12:30:26.18 |
-41:31:42.1 |
HIP 61101 |
9.95 |
| 2026-04-15 00:00 |
12:30:21.78 |
-41:31:19.7 |
HIP 60961 |
9.52 |
| 2026-04-15 12:00 |
12:30:17.38 |
-41:30:56.9 |
HIP 60961 |
8.70 |
| 2026-04-16 00:00 |
12:30:13.00 |
-41:30:34.0 |
HIP 60961 |
7.90 |