Observation information
- date-obs: 2025-05-08
- time-obs: 05:59:09.476000000
- date-end: 2025-05-08
- time-end: 14:49:20.408400000
- obs_id: C09_011T06_9000006468
- exposure: 5186.38609165
- 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_011T06_9000006468_51984cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51984cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,130,951,680 | 221,734,080 |
Size | 2.9 GB
| 211.5 MB
|
Events in quadrant A | 20,678,316 | 1,630,934 |
Events in quadrant B | 19,574,562 | 1,853,724 |
Events in quadrant C | 26,742,107 | 1,344,554 |
Events in quadrant D | 47,272,395 | 422,488 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 75885 | 11 |
B | 0 | 72838 | 4 |
C | 0 | 94230 | 4 |
D | 0 | 154786 | 4 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 15 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 432 | 0 |
B | 0 | 432 | 0 |
C | 0 | 432 | 0 |
D | 0 | 432 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 21189 | 3641 | 17.183444% |
B | 21191 | 3074 | 14.506158% |
C | 21191 | 6476 | 30.560143% |
D | 21191 | 16638 | 78.514464% |
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 | 31809 | 21189 | 2746 | 2746 | 8.63% | 12.96% |  |
B | 31811 | 21190 | 1820 | 1820 | 5.72% | 8.59% |  |
C | 31811 | 21192 | 5563 | 5563 | 17.49% | 26.25% |  |
D | 31810 | 21187 | 15688 | 15688 | 49.32% | 74.05% |  |
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 | 7 | 64 | 6818340 | 13169.9 | 2097 | 2046 | 517.6 |
A | 4 | 95 | 2376479 | 4587.69 | 2097 | 2046 | 517.6 |
A | 4 | 3 | 414685 | 797.27 | 2097 | 2046 | 517.6 |
B | 12 | 32 | 3680203 | 8122.77 | 2120 | 2042 | 452.8 |
B | 4 | 206 | 2197051 | 4847.41 | 2120 | 2042 | 452.8 |
B | 10 | 128 | 1365558 | 3011.16 | 2120 | 2042 | 452.8 |
C | 15 | 224 | 8059383 | 15515.89 | 1868 | 1847 | 519.3 |
C | 12 | 252 | 7051320 | 13574.73 | 1868 | 1847 | 519.3 |
C | 13 | 3 | 2159528 | 4154.91 | 1868 | 1847 | 519.3 |
D | 2 | 172 | 24500514 | 71131.3 | 1195 | 1139 | 344.4 |
D | 12 | 17 | 4127587 | 11980.7 | 1195 | 1139 | 344.4 |
D | 7 | 126 | 3878964 | 11258.85 | 1195 | 1139 | 344.4 |
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 |  |