ASTROSAT CZTI

Data Quality Report

Orbit 19528

Creation date: 2024-06-27T18:03:54.676004
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/AS1T03_108T01_9000002898_19528cztM0_level2.evt modeM0/AS1T03_108T01_9000002898_19528cztM0_level2_quad_clean.evt
Size (bytes)518,454,72069,894,720
Size494.4 MB 66.7 MB
Events in quadrant A3,482,190421,409
Events in quadrant B3,563,049423,807
Events in quadrant C3,548,557407,796
Events in quadrant D4,642,851386,080

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143142
B0144662
C0143722
D0180292

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68481151.679322%
B68481422.073598%
C68481382.015187%
D68484496.556659%

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 7848 6848 0 0 0.00% 0.00%
B 7848 6848 4 4 0.05% 0.06%
C 7848 6848 0 0 0.00% 0.00%
D 7848 6848 336 336 4.28% 4.91%

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 13 254 8558 41.94 903 885 183.0
A 0 226 7869 38.17 903 885 183.0
A 3 137 7029 33.58 903 885 183.0
B 0 198 21511 120.28 890 867 171.6
B 12 111 20522 114.52 890 867 171.6
B 7 220 19930 111.07 890 867 171.6
C 14 238 133665 668.53 853 860 198.7
C 3 233 79036 393.53 853 860 198.7
C 7 247 7549 33.67 853 860 198.7
D 13 104 612671 2895.08 862 836 211.3
D 12 233 520951 2461.08 862 836 211.3
D 2 16 59714 278.6 862 836 211.3

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