ASTROSAT CZTI

Data Quality Report

Orbit 44026

Creation date: 2024-06-27T22:58:27.371435
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_023T03_9000005934_44026cztM0_level2.fits modeM0/AS1A13_023T03_9000005934_44026cztM0_level2_quad_clean.evt
Size (bytes)446,711,040105,675,840
Size426.0 MB 100.8 MB
Events in quadrant A3,956,955713,429
Events in quadrant B3,217,214744,941
Events in quadrant C3,298,360707,602
Events in quadrant D5,577,086597,125

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161551
B0134981
C0136391
D0208481

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6258681.086609%
B6257791.262586%
C6258370.591243%
D62585759.188239%

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 7378 6259 0 0 0.00% 0.00%
B 7377 6258 17 17 0.23% 0.27%
C 7378 6259 6 6 0.08% 0.10%
D 7378 6258 477 477 6.47% 7.62%

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 1069948 7099.88 728 714 150.6
A 14 238 49226 322.13 728 714 150.6
A 15 223 17493 111.42 728 714 150.6
B 0 213 148397 1026.38 733 711 143.9
B 4 171 46420 317.67 733 711 143.9
B 5 172 33939 230.93 733 711 143.9
C 3 233 370567 2162.75 725 729 171.0
C 14 254 85331 494.74 725 729 171.0
C 1 241 11180 61.12 725 729 171.0
D 7 80 966065 5458.47 695 674 176.9
D 8 48 744769 4207.23 695 674 176.9
D 5 235 559786 3161.3 695 674 176.9

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