ASTROSAT CZTI

Data Quality Report

Orbit 22922

Creation date: 2024-06-27T18:47:33.634409
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/AS1A07_047T09_9000003386_22922cztM0_level2.evt modeM0/AS1A07_047T09_9000003386_22922cztM0_level2_quad_clean.evt
Size (bytes)193,510,08046,347,840
Size184.5 MB 44.2 MB
Events in quadrant A1,166,702314,212
Events in quadrant B1,301,934318,873
Events in quadrant C1,166,159302,501
Events in quadrant D2,051,513285,842

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051411
B055001
C051801
D079381

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A253380.315831%
B2534150.591949%
C2534120.473560%
D25342007.892660%

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 3138 2534 0 0 0.00% 0.00%
B 3139 2535 1 1 0.03% 0.04%
C 3139 2535 0 0 0.00% 0.00%
D 3139 2535 121 121 3.85% 4.77%

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 23 5394 81.23 300 293 62.8
A 13 254 4763 71.19 300 293 62.8
A 0 226 3011 43.28 300 293 62.8
B 0 190 84879 1437.6 299 292 58.8
B 0 228 14724 245.28 299 292 58.8
B 0 197 13318 221.38 299 292 58.8
C 14 238 45026 666.78 279 279 67.1
C 6 80 21927 322.58 279 279 67.1
C 7 247 8226 118.42 279 279 67.1
D 1 52 656911 9416.22 277 267 69.7
D 13 172 218437 3128.54 277 267 69.7
D 12 233 38456 547.63 277 267 69.7

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