Observation information
- date-obs: 2016-10-14
- time-obs: 10:17:21.589700000
- date-end: 2016-10-15
- time-end: 23:55:00.510700000
- obs_id: A02_077T01_9000000732
- exposure: 59635.8938286
- sourceid: GRS 1758-258
- observer: Radhika
- ra_pnt: 270.3017
- dec_pnt: -25.74336
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A02_077T01_9000000732cztM0_level2_bc.evt
| modeM0/AS1A02_077T01_9000000732cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,246,500,160 | 1,184,353,920 |
Size | 3.0 GB
| 1.1 GB
|
Events in quadrant A | 19,294,882 | 7,678,545 |
Events in quadrant B | 29,637,844 | 7,494,308 |
Events in quadrant C | 18,496,076 | 7,055,186 |
Events in quadrant D | 24,628,316 | 7,347,699 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 197427 | 0 |
B | 0 | 233686 | 0 |
C | 0 | 177885 | 0 |
D | 0 | 212137 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1925 | 0 |
B | 0 | 1928 | 0 |
C | 0 | 1946 | 0 |
D | 0 | 1914 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140 | 0 |
B | 0 | 141 | 0 |
C | 0 | 144 | 0 |
D | 0 | 140 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 94482 | 1182 | 1.251032% |
B | 94076 | 4097 | 4.354990% |
C | 83886 | 841 | 1.002551% |
D | 94016 | 1402 | 1.491236% |
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 | 135460 | 97949 | 16 | 16 | 0.01% | 0.02% |  |
B | 135460 | 97554 | 769 | 769 | 0.57% | 0.79% |  |
C | 116515 | 86415 | 31 | 31 | 0.03% | 0.04% |  |
D | 135460 | 97490 | 131 | 131 | 0.10% | 0.13% |  |
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 | 50 | 496198 | 470.35 | 4692 | 4590 | 1045.2 |
A | 13 | 6 | 179709 | 167.55 | 4692 | 4590 | 1045.2 |
A | 4 | 2 | 151862 | 140.9 | 4692 | 4590 | 1045.2 |
B | 5 | 172 | 3065009 | 3440.03 | 4620 | 4480 | 889.7 |
B | 10 | 245 | 2513416 | 2820.04 | 4620 | 4480 | 889.7 |
B | 15 | 204 | 2128412 | 2387.3 | 4620 | 4480 | 889.7 |
C | 1 | 16 | 1833117 | 2040.66 | 4084 | 4028 | 896.3 |
C | 5 | 250 | 274223 | 301.45 | 4084 | 4028 | 896.3 |
C | 10 | 34 | 200062 | 218.71 | 4084 | 4028 | 896.3 |
D | 2 | 152 | 2679612 | 2461.85 | 4597 | 4423 | 1086.7 |
D | 12 | 233 | 1132875 | 1038.46 | 4597 | 4423 | 1086.7 |
D | 8 | 195 | 742274 | 679.01 | 4597 | 4423 | 1086.7 |
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 |  |