ASTROSAT CZTI

Data Quality Report

Orbit 46969

Creation date: 2024-06-27T23:30:05.843183
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/AS1A13_071T07_9000006290_46969cztM0_level2.fits modeM0/AS1A13_071T07_9000006290_46969cztM0_level2_quad_clean.evt
Size (bytes)677,664,00096,621,120
Size646.3 MB 92.1 MB
Events in quadrant A6,312,193686,969
Events in quadrant B10,284,071515,208
Events in quadrant C2,980,408685,721
Events in quadrant D5,020,750598,068

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232761
B0349291
C0136101
D0193161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63012714.300905%
B6301234037.136962%
C6302641.015551%
D63025278.362425%

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 7356 6302 35 35 0.48% 0.56%
B 7356 6302 1862 1862 25.31% 29.55%
C 7357 6303 13 13 0.18% 0.21%
D 7357 6303 388 388 5.27% 6.16%

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 10 83 3472484 24500.47 689 674 141.7
A 14 248 59813 417.34 689 674 141.7
A 0 243 50402 350.93 689 674 141.7
B 3 112 7287051 59732.51 627 608 122.0
B 4 171 201411 1646.13 627 608 122.0
B 5 172 167340 1366.83 627 608 122.0
C 15 208 221656 1408.97 676 676 156.8
C 3 233 65112 410.84 676 676 156.8
C 0 207 37341 233.77 676 676 156.8
D 1 52 1572966 9599.79 656 634 163.8
D 13 249 511264 3117.62 656 634 163.8
D 1 47 182050 1107.63 656 634 163.8

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