메타데이터
| 항목 |
값 |
| Designation |
C/1999 K5 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2000-07-04T09:14:43.310400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:00Z |
| Obs used |
239 |
| NEO |
- |
| M1 |
6.100 |
| K1 |
10.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2000-03-16.0000000 |
| e |
1.00176295 |
| q (au) |
3.255394 |
| a (au) |
-1846.560639 |
| i (deg) |
89.471269 |
| Ω (om, deg) |
106.379754 |
| ω (w, deg) |
241.485412 |
| M (ma, deg) |
-0.001371 |
밝기
산란 + 전체 선형
$$
M_a = (3.963 + 5.981\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
3.963 |
| n |
5.981 |
| gf |
1.000 |
| gb |
-0.529 |
| 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) |
| 2026-03-26 00:00 |
07:28:01.38 |
+53:09:06.3 |
HIP 36172 |
9.56 |
| 2026-03-26 12:00 |
07:28:00.26 |
+53:08:50.3 |
HIP 36172 |
9.51 |
| 2026-03-27 00:00 |
07:27:59.18 |
+53:08:34.3 |
HIP 36172 |
9.47 |
| 2026-03-27 12:00 |
07:27:58.13 |
+53:08:18.2 |
HIP 36172 |
9.45 |
| 2026-03-28 00:00 |
07:27:57.12 |
+53:08:02.0 |
HIP 36172 |
9.44 |
| 2026-03-28 12:00 |
07:27:56.14 |
+53:07:45.8 |
HIP 36172 |
9.45 |
| 2026-03-29 00:00 |
07:27:55.20 |
+53:07:29.4 |
HIP 36172 |
9.48 |
| 2026-03-29 12:00 |
07:27:54.30 |
+53:07:13.0 |
HIP 36172 |
9.52 |
| 2026-03-30 00:00 |
07:27:53.43 |
+53:06:56.6 |
HIP 36172 |
9.57 |
| 2026-03-30 12:00 |
07:27:52.60 |
+53:06:40.0 |
HIP 36172 |
9.64 |
| 2026-03-31 00:00 |
07:27:51.81 |
+53:06:23.4 |
HIP 36172 |
9.73 |
| 2026-03-31 12:00 |
07:27:51.05 |
+53:06:06.8 |
HIP 36172 |
9.82 |
| 2026-04-01 00:00 |
07:27:50.33 |
+53:05:50.0 |
HIP 36172 |
9.93 |
| 2026-04-01 12:00 |
07:27:49.65 |
+53:05:33.2 |
HIP 36172 |
10.05 |
| 2026-04-02 00:00 |
07:27:49.00 |
+53:05:16.4 |
HIP 36172 |
10.18 |
| 2026-04-02 12:00 |
07:27:48.39 |
+53:04:59.5 |
HIP 36172 |
10.33 |
| 2026-04-03 00:00 |
07:27:47.81 |
+53:04:42.5 |
HIP 36172 |
10.48 |
| 2026-04-03 12:00 |
07:27:47.28 |
+53:04:25.4 |
HIP 36172 |
10.65 |
| 2026-04-04 00:00 |
07:27:46.77 |
+53:04:08.3 |
HIP 36172 |
10.82 |
| 2026-04-04 12:00 |
07:27:46.31 |
+53:03:51.2 |
HIP 36172 |
11.01 |
| 2026-04-05 00:00 |
07:27:45.88 |
+53:03:34.0 |
HIP 36172 |
11.20 |
| 2026-04-05 12:00 |
07:27:45.48 |
+53:03:16.8 |
HIP 36172 |
11.40 |
| 2026-04-06 00:00 |
07:27:45.13 |
+53:02:59.5 |
HIP 36172 |
11.61 |
| 2026-04-06 12:00 |
07:27:44.81 |
+53:02:42.1 |
HIP 36172 |
11.83 |
| 2026-04-07 00:00 |
07:27:44.52 |
+53:02:24.7 |
HIP 36172 |
12.05 |
| 2026-04-07 12:00 |
07:27:44.27 |
+53:02:07.3 |
HIP 36172 |
12.28 |
| 2026-04-08 00:00 |
07:27:44.06 |
+53:01:49.8 |
HIP 36172 |
12.51 |
| 2026-04-08 12:00 |
07:27:43.89 |
+53:01:32.2 |
HIP 36172 |
12.75 |
| 2026-04-09 00:00 |
07:27:43.75 |
+53:01:14.7 |
HIP 36172 |
13.00 |
| 2026-04-09 12:00 |
07:27:43.65 |
+53:00:57.1 |
HIP 36172 |
13.25 |
| 2026-04-10 00:00 |
07:27:43.58 |
+53:00:39.4 |
HIP 36172 |
13.50 |
| 2026-04-10 12:00 |
07:27:43.55 |
+53:00:21.7 |
HIP 36172 |
13.77 |
| 2026-04-11 00:00 |
07:27:43.56 |
+53:00:04.0 |
HIP 36172 |
14.03 |
| 2026-04-11 12:00 |
07:27:43.60 |
+52:59:46.2 |
HIP 36172 |
14.30 |
| 2026-04-12 00:00 |
07:27:43.68 |
+52:59:28.4 |
HIP 36172 |
14.57 |
| 2026-04-12 12:00 |
07:27:43.79 |
+52:59:10.6 |
HIP 36172 |
14.85 |
| 2026-04-13 00:00 |
07:27:43.94 |
+52:58:52.8 |
HIP 36172 |
15.13 |
| 2026-04-13 12:00 |
07:27:44.13 |
+52:58:34.9 |
HIP 36172 |
15.41 |
| 2026-04-14 00:00 |
07:27:44.35 |
+52:58:17.0 |
HIP 36172 |
15.70 |
| 2026-04-14 12:00 |
07:27:44.61 |
+52:57:59.0 |
HIP 36172 |
15.99 |
| 2026-04-15 00:00 |
07:27:44.91 |
+52:57:41.1 |
HIP 36172 |
16.28 |
| 2026-04-15 12:00 |
07:27:45.24 |
+52:57:23.1 |
HIP 36172 |
16.57 |
| 2026-04-16 00:00 |
07:27:45.60 |
+52:57:05.1 |
HIP 36172 |
16.87 |