ASTROSAT CZTI

Data Quality Report

Orbit 08592

Creation date: 2024-06-27T15:34:42.516713
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A03_102T01_9000001202_08592cztM0_level2.evt modeM0/AS1A03_102T01_9000001202_08592cztM0_level2_quad_clean.evt
Size (bytes)645,992,640156,401,280
Size616.1 MB 149.2 MB
Events in quadrant A4,758,5211,013,934
Events in quadrant B4,730,3561,038,634
Events in quadrant C4,342,8971,020,066
Events in quadrant D5,059,573977,393

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02020
B02020
C02020
D02020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211323
B0209402
C0201502
D0222332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A99121401.412429%
B99121031.039144%
C9912850.857546%
D99122442.461663%

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 11607 9912 46 46 0.40% 0.46%
B 11607 9912 6 6 0.05% 0.06%
C 11607 9912 0 0 0.00% 0.00%
D 11607 9912 144 144 1.24% 1.45%

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 15 223 256458 1131.21 1121 1093 225.7
A 15 239 101455 444.58 1121 1093 225.7
A 8 5 52133 226.1 1121 1093 225.7
B 0 214 95440 436.01 1137 1111 216.3
B 0 219 76575 348.81 1137 1111 216.3
B 4 173 63694 289.27 1137 1111 216.3
C 14 67 32199 121.93 1102 1107 255.0
C 8 222 8762 30.02 1102 1107 255.0
C 13 61 8264 28.06 1102 1107 255.0
D 10 253 370918 1388.67 1094 1061 266.3
D 7 71 144827 539.78 1094 1061 266.3
D 13 105 137067 510.65 1094 1061 266.3

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