ASTROSAT CZTI

Data Quality Report

Orbit 10187

Creation date: 2024-06-27T15:56:21.458632
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/AS1G07_011T04_9000001466_10187cztM0_level2.evt modeM0/AS1G07_011T04_9000001466_10187cztM0_level2_quad_clean.evt
Size (bytes)135,567,36023,034,240
Size129.3 MB 22.0 MB
Events in quadrant A982,275150,608
Events in quadrant B842,781106,449
Events in quadrant C1,045,645146,551
Events in quadrant D1,094,308146,415

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120257954
B01409610827
C0124368201
D0141169722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187
B02211
C02211
D0187

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012063
B012067
C012062
D011862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A203620.098232%
B163530.183486%
C211810.047214%
D214760.279460%

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 4055 2490 0 0 0.00% 0.00%
B 4055 2118 0 0 0.00% 0.00%
C 4055 2560 0 0 0.00% 0.00%
D 4055 2409 0 0 0.00% 0.00%

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 0 226 2309 38.68 255 250 53.2
A 12 194 2114 35.02 255 250 53.2
A 3 137 1079 15.57 255 250 53.2
B 0 219 13131 313.87 207 202 41.2
B 11 51 9906 235.58 207 202 41.2
B 0 214 5645 132.14 207 202 41.2
C 14 67 26139 420.75 261 262 61.5
C 13 61 1988 28.06 261 262 61.5
C 14 234 1095 13.54 261 262 61.5
D 8 195 46317 723.2 263 257 63.7
D 1 52 14076 216.98 263 257 63.7
D 4 95 10009 153.12 263 257 63.7

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