ASTROSAT CZTI

Data Quality Report

Orbit 30150

Creation date: 2024-06-27T20:11:31.961711
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/AS1A10_097T03_9000004336_30150cztM0_level2.evt modeM0/AS1A10_097T03_9000004336_30150cztM0_level2_quad_clean.evt
Size (bytes)155,387,52034,133,760
Size148.2 MB 32.6 MB
Events in quadrant A888,065230,685
Events in quadrant B1,365,896235,139
Events in quadrant C1,108,131230,781
Events in quadrant D1,239,821225,472

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0361413
B0496315
C0451621
D0481613

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1500261.733333%
B1500654.333333%
C1500966.400000%
D1501291.932045%

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 2781 1507 0 0 0.00% 0.00%
B 2783 1509 1 1 0.04% 0.07%
C 2781 1510 0 0 0.00% 0.00%
D 2783 1511 2 2 0.07% 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 8 192 10959 232.69 225 222 46.1
A 0 13 6117 127.76 225 222 46.1
A 13 254 2851 56.98 225 222 46.1
B 6 159 461308 10364.3 227 223 44.5
B 0 190 7343 160.04 227 223 44.5
B 4 171 6982 151.93 227 223 44.5
C 3 233 186208 3453.87 224 226 53.8
C 14 238 36553 674.63 224 226 53.8
C 2 114 3775 65.91 224 226 53.8
D 12 227 226036 3878.86 224 219 58.2
D 7 1 71150 1218.38 224 219 58.2
D 13 168 43189 738.1 224 219 58.2

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