Observation information
- date-obs: 2017-09-26
- time-obs: 09:13:14.529800000
- date-end: 2017-09-27
- time-end: 01:28:04.527100000
- obs_id: A03_071T01_9000001562
- exposure: 34529.8967915
- sourceid: NGC 1275
- observer: debbijoy
- ra_pnt: 49.95067
- dec_pnt: 41.5117
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A03_071T01_9000001562cztM0_level2_bc.evt
| modeM0/AS1A03_071T01_9000001562cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,468,450,880 | 689,348,160 |
Size | 2.3 GB
| 657.4 MB
|
Events in quadrant A | 18,056,188 | 4,230,777 |
Events in quadrant B | 23,363,898 | 4,242,706 |
Events in quadrant C | 10,935,401 | 4,534,779 |
Events in quadrant D | 18,760,350 | 4,201,693 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 88 | 0 |
B | 0 | 88 | 0 |
C | 0 | 88 | 0 |
D | 0 | 88 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140890 | 0 |
B | 0 | 165720 | 0 |
C | 0 | 110820 | 0 |
D | 0 | 138204 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1088 | 0 |
B | 0 | 1088 | 0 |
C | 0 | 1088 | 0 |
D | 0 | 1088 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 53449 | 3379 | 6.321914% |
B | 53449 | 5883 | 11.006754% |
C | 53449 | 490 | 0.916762% |
D | 53450 | 1995 | 3.732460% |
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 | 61554 | 53449 | 387 | 387 | 0.63% | 0.72% |  |
B | 61555 | 53448 | 284 | 284 | 0.46% | 0.53% |  |
C | 61554 | 53452 | 8 | 8 | 0.01% | 0.01% |  |
D | 61554 | 53448 | 458 | 458 | 0.74% | 0.86% |  |
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 | 8 | 5 | 7198533 | 12586.13 | 2666 | 2618 | 571.7 |
A | 15 | 174 | 261443 | 452.7 | 2666 | 2618 | 571.7 |
A | 8 | 15 | 143906 | 247.12 | 2666 | 2618 | 571.7 |
B | 4 | 239 | 8136689 | 16298.72 | 2659 | 2592 | 499.1 |
B | 0 | 85 | 2206127 | 4415.34 | 2659 | 2592 | 499.1 |
B | 15 | 204 | 1169978 | 2339.15 | 2659 | 2592 | 499.1 |
C | 14 | 234 | 164737 | 269.5 | 2746 | 2716 | 601.2 |
C | 8 | 222 | 20040 | 28.82 | 2746 | 2716 | 601.2 |
C | 13 | 61 | 16668 | 23.21 | 2746 | 2716 | 601.2 |
D | 13 | 138 | 2241752 | 3649.71 | 2697 | 2607 | 613.5 |
D | 8 | 195 | 1592007 | 2590.66 | 2697 | 2607 | 613.5 |
D | 9 | 85 | 1137985 | 1850.62 | 2697 | 2607 | 613.5 |
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 |  |