ASTROSAT CZTI

Data Quality Report

Orbit 04292

Creation date: 2024-06-27T14:39:59.741333
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/AS1G05_256T01_9000000538_04292cztM0_level2.evt modeM0/AS1G05_256T01_9000000538_04292cztM0_level2_quad_clean.evt
Size (bytes)1,085,224,320199,146,240
Size1.0 GB 189.9 MB
Events in quadrant A7,063,1971,307,218
Events in quadrant B6,869,3081,290,569
Events in quadrant C9,093,7861,257,753
Events in quadrant D8,949,8091,265,261

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02720
B02720
C02720
D02720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030916129
B02985088
C036674143
D036949155

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A131633572.712148%
B131722221.685393%
C131658296.297000%
D131645954.519903%

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 14748 13200 239 239 1.62% 1.81%
B 14748 13201 120 120 0.81% 0.91%
C 14748 13197 732 732 4.96% 5.55%
D 14748 13197 418 418 2.83% 3.17%

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 0 199 816226 2778.61 1435 1403 293.2
A 15 234 476043 1618.56 1435 1403 293.2
A 0 226 93744 314.89 1435 1403 293.2
B 10 16 381240 1357.65 1462 1425 279.8
B 14 167 324411 1154.52 1462 1425 279.8
B 4 48 127237 449.72 1462 1425 279.8
C 9 144 3466593 10864.43 1378 1379 319.0
C 9 247 170657 530.73 1378 1379 319.0
C 10 65 34364 103.42 1378 1379 319.0
D 2 232 2296089 6834.05 1394 1352 335.8
D 12 22 392333 1164.4 1394 1352 335.8
D 2 37 214087 633.55 1394 1352 335.8

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