ASTROSAT CZTI

Data Quality Report

Orbit 32982

Creation date: 2024-06-27T20:44:12.545517
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/AS1C07_003T01_9000004754_32982cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32982cztM0_level2_quad_clean.evt
Size (bytes)684,679,680129,778,560
Size653.0 MB 123.8 MB
Events in quadrant A4,409,608820,560
Events in quadrant B5,164,477831,706
Events in quadrant C4,625,137819,720
Events in quadrant D5,874,484781,497

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02000
B02000
C02000
D02000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196142
B0216112
C0202392
D0236522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9765100.102407%
B97651891.935484%
C9765850.870456%
D9765620.634921%

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 11108 9765 0 0 0.00% 0.00%
B 11108 9765 125 125 1.13% 1.28%
C 11108 9765 55 55 0.50% 0.56%
D 11108 9765 41 41 0.37% 0.42%

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 9 143 24710 102.76 1131 1106 229.7
A 13 254 16901 68.76 1131 1106 229.7
A 3 137 10958 42.89 1131 1106 229.7
B 5 172 522151 2396.34 1126 1099 217.4
B 10 244 69594 315.01 1126 1099 217.4
B 0 197 60603 273.66 1126 1099 217.4
C 0 10 218127 849.79 1096 1101 255.4
C 14 67 50671 194.1 1096 1101 255.4
C 9 54 26657 100.07 1096 1101 255.4
D 8 195 790258 2775.94 1083 1058 284.3
D 2 250 325621 1141.62 1083 1058 284.3
D 12 227 147190 514.01 1083 1058 284.3

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