ASTROSAT CZTI

Data Quality Report

Orbit 30203

Creation date: 2024-06-27T20:12:10.863297
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_071T09_9000004344_30203cztM0_level2.evt modeM0/AS1A10_071T09_9000004344_30203cztM0_level2_quad_clean.evt
Size (bytes)1,015,430,400132,301,440
Size968.4 MB 126.2 MB
Events in quadrant A4,918,391852,485
Events in quadrant B7,696,006851,498
Events in quadrant C11,139,819778,169
Events in quadrant D6,301,284807,773

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02080
B02080
C02080
D02080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213072
B0311422
C0405662
D0250102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A103561911.844341%
B103562792.694090%
C10356127112.273078%
D103572252.172444%

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 11256 10357 0 0 0.00% 0.00%
B 11256 10357 1 1 0.01% 0.01%
C 11256 10356 480 480 4.26% 4.63%
D 11257 10358 92 92 0.82% 0.89%

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 25623 94.98 1267 1239 256.7
A 13 254 17207 62.2 1267 1239 256.7
A 3 137 13221 46.67 1267 1239 256.7
B 6 159 2789028 11436.29 1247 1211 243.8
B 12 111 30979 122.12 1247 1211 243.8
B 11 111 28697 112.75 1247 1211 243.8
C 3 233 6321734 22610.61 1183 1187 279.5
C 14 238 185404 659.0 1183 1187 279.5
C 2 114 23412 79.5 1183 1187 279.5
D 7 223 503848 1684.26 1224 1195 298.4
D 8 195 474277 1585.18 1224 1195 298.4
D 13 104 422104 1410.36 1224 1195 298.4

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