Observation information
- date-obs: 2025-04-29
- time-obs: 11:55:01.241700000
- date-end: 2025-04-29
- time-end: 17:20:45.191400000
- obs_id: C09_011T05_9000006466
- exposure: 9419.06628484
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T05_9000006466_51852cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51852cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,186,009,280 | 218,113,920 |
Size | 2.0 GB
| 208.0 MB
|
Events in quadrant A | 20,054,312 | 1,306,571 |
Events in quadrant B | 14,220,928 | 1,713,304 |
Events in quadrant C | 12,239,155 | 1,548,478 |
Events in quadrant D | 32,975,258 | 756,955 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 378 | 0 |
B | 0 | 378 | 0 |
C | 0 | 378 | 0 |
D | 0 | 378 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 72331 | 2 |
B | 0 | 54847 | 2 |
C | 0 | 49385 | 3 |
D | 0 | 110701 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18529 | 4203 | 22.683361% |
B | 18529 | 1555 | 8.392250% |
C | 18528 | 1000 | 5.397237% |
D | 18529 | 9798 | 52.879270% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 19543 | 18528 | 3676 | 3676 | 18.81% | 19.84% |  |
B | 19544 | 18530 | 1132 | 1132 | 5.79% | 6.11% |  |
C | 19543 | 18530 | 774 | 774 | 3.96% | 4.18% |  |
D | 19543 | 18530 | 8669 | 8669 | 44.36% | 46.78% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 0 | 228 | 8151098 | 18624.05 | 1749 | 1706 | 437.6 |
A | 12 | 3 | 1258640 | 2872.51 | 1749 | 1706 | 437.6 |
A | 8 | 246 | 775705 | 1768.84 | 1749 | 1706 | 437.6 |
B | 10 | 44 | 2424566 | 6045.58 | 1899 | 1832 | 400.7 |
B | 5 | 185 | 1328346 | 3310.12 | 1899 | 1832 | 400.7 |
B | 7 | 252 | 395552 | 982.47 | 1899 | 1832 | 400.7 |
C | 15 | 158 | 898811 | 1726.44 | 1888 | 1867 | 519.5 |
C | 13 | 3 | 526043 | 1008.94 | 1888 | 1867 | 519.5 |
C | 14 | 80 | 492700 | 944.76 | 1888 | 1867 | 519.5 |
D | 11 | 129 | 20700512 | 55465.34 | 1335 | 1285 | 373.2 |
D | 7 | 60 | 2314912 | 6199.56 | 1335 | 1285 | 373.2 |
D | 6 | 42 | 885473 | 2369.26 | 1335 | 1285 | 373.2 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |