메타데이터
| 항목 |
값 |
| Designation |
C/1998 T1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1999-06-25T05:58:21.192960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:57Z |
| Obs used |
376 |
| NEO |
- |
| M1 |
12.200 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1999-05-05.0000000 |
| e |
0.99911409 |
| q (au) |
1.467728 |
| a (au) |
1656.736959 |
| i (deg) |
170.159948 |
| Ω (om, deg) |
153.357852 |
| ω (w, deg) |
226.351694 |
| M (ma, deg) |
359.999251 |
밝기
산란 + 전체 선형
$$
M_a = (9.231 + 4.429\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.231 |
| n |
4.429 |
| gf |
1.000 |
| gb |
-0.516 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
08:38:29.89 |
+22:57:13.2 |
HIP 42443 |
13.53 |
| 2026-06-01 12:00 |
08:38:31.16 |
+22:57:06.5 |
HIP 42443 |
13.24 |
| 2026-06-02 00:00 |
08:38:32.44 |
+22:56:59.7 |
HIP 42443 |
12.94 |
| 2026-06-02 12:00 |
08:38:33.74 |
+22:56:52.9 |
HIP 42443 |
12.65 |
| 2026-06-03 00:00 |
08:38:35.06 |
+22:56:46.1 |
HIP 42443 |
12.34 |
| 2026-06-03 12:00 |
08:38:36.39 |
+22:56:39.2 |
HIP 42443 |
12.04 |
| 2026-06-04 00:00 |
08:38:37.74 |
+22:56:32.2 |
HIP 42443 |
11.74 |
| 2026-06-04 12:00 |
08:38:39.11 |
+22:56:25.2 |
HIP 42443 |
11.43 |
| 2026-06-05 00:00 |
08:38:40.49 |
+22:56:18.2 |
HIP 42443 |
11.12 |
| 2026-06-05 12:00 |
08:38:41.89 |
+22:56:11.1 |
HIP 42443 |
10.81 |
| 2026-06-06 00:00 |
08:38:43.31 |
+22:56:04.0 |
HIP 42443 |
10.50 |
| 2026-06-06 12:00 |
08:38:44.74 |
+22:55:56.8 |
HIP 42443 |
10.19 |
| 2026-06-07 00:00 |
08:38:46.19 |
+22:55:49.6 |
HIP 42443 |
9.88 |
| 2026-06-07 12:00 |
08:38:47.65 |
+22:55:42.4 |
HIP 42443 |
9.57 |
| 2026-06-08 00:00 |
08:38:49.13 |
+22:55:35.1 |
HIP 42443 |
9.25 |
| 2026-06-08 12:00 |
08:38:50.63 |
+22:55:27.7 |
HIP 42443 |
8.94 |
| 2026-06-09 00:00 |
08:38:52.14 |
+22:55:20.3 |
HIP 42443 |
8.64 |
| 2026-06-09 12:00 |
08:38:53.66 |
+22:55:12.9 |
HIP 42443 |
8.33 |
| 2026-06-10 00:00 |
08:38:55.20 |
+22:55:05.5 |
HIP 42443 |
8.03 |
| 2026-06-10 12:00 |
08:38:56.76 |
+22:54:58.0 |
HIP 42443 |
7.73 |
| 2026-06-11 00:00 |
08:38:58.33 |
+22:54:50.4 |
HIP 42443 |
7.43 |
| 2026-06-11 12:00 |
08:38:59.92 |
+22:54:42.8 |
HIP 42443 |
7.14 |
| 2026-06-12 00:00 |
08:39:01.52 |
+22:54:35.2 |
HIP 42443 |
6.86 |
| 2026-06-12 12:00 |
08:39:03.14 |
+22:54:27.5 |
HIP 42443 |
6.59 |
| 2026-06-13 00:00 |
08:39:04.77 |
+22:54:19.8 |
HIP 42443 |
6.33 |
| 2026-06-13 12:00 |
08:39:06.42 |
+22:54:12.1 |
HIP 42443 |
6.09 |
| 2026-06-14 00:00 |
08:39:08.08 |
+22:54:04.3 |
HIP 42443 |
5.85 |
| 2026-06-14 12:00 |
08:39:09.76 |
+22:53:56.5 |
HIP 42443 |
5.64 |
| 2026-06-15 00:00 |
08:39:11.44 |
+22:53:48.7 |
HIP 42443 |
5.45 |
| 2026-06-15 12:00 |
08:39:13.15 |
+22:53:40.8 |
HIP 42443 |
5.28 |
| 2026-06-16 00:00 |
08:39:14.86 |
+22:53:32.9 |
HIP 42443 |
5.14 |
| 2026-06-16 12:00 |
08:39:16.60 |
+22:53:24.9 |
HIP 42443 |
5.03 |
| 2026-06-17 00:00 |
08:39:18.34 |
+22:53:17.0 |
HIP 42443 |
4.96 |
| 2026-06-17 12:00 |
08:39:20.10 |
+22:53:09.0 |
HIP 42443 |
4.91 |
| 2026-06-18 00:00 |
08:39:21.87 |
+22:53:00.9 |
HIP 42443 |
4.91 |
| 2026-06-18 12:00 |
08:39:23.65 |
+22:52:52.8 |
HIP 42443 |
4.95 |
| 2026-06-19 00:00 |
08:39:25.45 |
+22:52:44.7 |
HIP 42443 |
5.02 |
| 2026-06-19 12:00 |
08:39:27.26 |
+22:52:36.6 |
HIP 42443 |
5.13 |
| 2026-06-20 00:00 |
08:39:29.08 |
+22:52:28.4 |
HIP 42443 |
5.28 |
| 2026-06-20 12:00 |
08:39:30.92 |
+22:52:20.2 |
HIP 42443 |
5.46 |
| 2026-06-21 00:00 |
08:39:32.76 |
+22:52:12.0 |
HIP 42443 |
5.67 |
| 2026-06-21 12:00 |
08:39:34.62 |
+22:52:03.8 |
HIP 42443 |
5.91 |
| 2026-06-22 00:00 |
08:39:36.50 |
+22:51:55.5 |
HIP 42443 |
6.17 |