ASTROSAT CZTI

Data Quality Report

Orbit 29573

Creation date: 2024-06-27T20:05:36.940787
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/AS1C05_019T01_9000004264_29573cztM0_level2.evt modeM0/AS1C05_019T01_9000004264_29573cztM0_level2_quad_clean.evt
Size (bytes)514,232,640117,336,960
Size490.4 MB 111.9 MB
Events in quadrant A3,141,305788,830
Events in quadrant B3,767,225818,646
Events in quadrant C3,722,013754,110
Events in quadrant D4,504,490741,341

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134593
B0153222
C0151102
D0179092

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6465210.324826%
B6465640.989946%
C64655398.337200%
D64651872.892498%

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 7800 6466 0 0 0.00% 0.00%
B 7800 6466 3 3 0.04% 0.05%
C 7800 6466 19 19 0.24% 0.29%
D 7800 6466 164 164 2.10% 2.54%

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 12441 72.47 812 801 160.6
A 3 137 7526 41.87 812 801 160.6
A 0 13 7013 38.67 812 801 160.6
B 0 189 492437 3233.83 820 801 152.0
B 0 190 29897 191.38 820 801 152.0
B 0 156 19305 121.71 820 801 152.0
C 14 238 275721 1563.52 764 771 175.9
C 9 54 212976 1206.71 764 771 175.9
C 14 254 205065 1161.73 764 771 175.9
D 13 104 829040 4594.85 772 750 180.3
D 8 195 280057 1549.43 772 750 180.3
D 13 153 220399 1218.48 772 750 180.3

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