Observation information
- date-obs: 2023-05-12
- time-obs: 18:10:11.234100000
- date-end: 2023-05-12
- time-end: 20:12:06.234600000
- obs_id: A12_100T01_9000005628
- exposure: 5059.59356397
- sourceid: NGC 4647
- observer: sreeja
- ra_pnt: 190.8856
- dec_pnt: 11.58247
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_100T01_9000005628_41208cztM0_level2.fits
| modeM0/AS1A12_100T01_9000005628_41208cztM0_level2_quad_clean.evt
|
Size (bytes) | 290,923,200 | 84,314,880 |
Size | 277.4 MB
| 80.4 MB
|
Events in quadrant A | 2,727,441 | 563,697 |
Events in quadrant B | 2,698,523 | 566,868 |
Events in quadrant C | 2,474,315 | 547,511 |
Events in quadrant D | 2,460,830 | 508,264 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20 | 0 |
B | 0 | 20 | 0 |
C | 0 | 20 | 0 |
D | 0 | 21 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11367 | 2 |
B | 0 | 11799 | 2 |
C | 0 | 10824 | 2 |
D | 0 | 11279 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108 | 0 |
B | 0 | 108 | 0 |
C | 0 | 108 | 0 |
D | 0 | 108 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5228 | 15 | 0.286917% |
B | 5228 | 112 | 2.142311% |
C | 5228 | 31 | 0.592961% |
D | 5228 | 47 | 0.899005% |
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 | 6541 | 5229 | 6 | 6 | 0.09% | 0.11% |  |
B | 6540 | 5228 | 90 | 90 | 1.38% | 1.72% |  |
C | 6541 | 5229 | 23 | 23 | 0.35% | 0.44% |  |
D | 6541 | 5229 | 48 | 48 | 0.73% | 0.92% |  |
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 | 10 | 83 | 484085 | 4164.22 | 564 | 552 | 116.1 |
A | 12 | 189 | 22011 | 184.81 | 564 | 552 | 116.1 |
A | 7 | 3 | 13513 | 111.62 | 564 | 552 | 116.1 |
B | 5 | 255 | 308923 | 2845.31 | 553 | 537 | 108.4 |
B | 0 | 229 | 198687 | 1828.22 | 553 | 537 | 108.4 |
B | 12 | 111 | 14027 | 124.46 | 553 | 537 | 108.4 |
C | 15 | 214 | 224848 | 1734.28 | 548 | 553 | 129.3 |
C | 0 | 10 | 98533 | 757.59 | 548 | 553 | 129.3 |
C | 14 | 254 | 9529 | 69.4 | 548 | 553 | 129.3 |
D | 2 | 120 | 187796 | 1396.84 | 546 | 531 | 134.1 |
D | 2 | 249 | 109866 | 815.55 | 546 | 531 | 134.1 |
D | 13 | 249 | 27828 | 203.61 | 546 | 531 | 134.1 |
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 |  |