ASTROSAT CZTI

Data Quality Report

Orbit 07300

Creation date: 2024-06-27T15:18:05.859110
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/AS1G06_137T01_9000001000_07300cztM0_level2.fits modeM0/AS1G06_137T01_9000001000_07300cztM0_level2_quad_clean.evt
Size (bytes)619,456,320111,637,440
Size590.8 MB 106.5 MB
Events in quadrant A5,569,455666,152
Events in quadrant B5,286,829689,294
Events in quadrant C5,499,294654,612
Events in quadrant D5,710,941601,112

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024311146
B023405180
C024204139
D025331158

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02262
B02262
C02262
D02264

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A111183393.049110%
B111111931.737017%
C111211611.447712%
D111162572.311983%

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 11596 11141 130 130 1.12% 1.17%
B 11596 11140 9 9 0.08% 0.08%
C 11596 11147 82 82 0.71% 0.74%
D 11596 11147 91 91 0.78% 0.82%

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 15 234 353296 1328.03 1287 1257 265.1
A 8 15 187881 704.02 1287 1257 265.1
A 15 239 31396 113.69 1287 1257 265.1
B 0 214 153677 612.23 1302 1270 248.9
B 4 81 68148 268.65 1302 1270 248.9
B 12 111 25928 99.05 1302 1270 248.9
C 9 68 536219 1842.26 1255 1261 290.4
C 7 247 38248 127.37 1255 1261 290.4
C 1 16 28428 93.56 1255 1261 290.4
D 2 216 379389 1223.1 1254 1214 309.2
D 2 14 316285 1019.01 1254 1214 309.2
D 12 233 123740 396.28 1254 1214 309.2

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