ASTROSAT CZTI

Data Quality Report

Orbit 13173

Creation date: 2024-06-27T16:37:12.752220
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/AS1G08_034T01_9000001944_13173cztM0_level2.evt modeM0/AS1G08_034T01_9000001944_13173cztM0_level2_quad_clean.evt
Size (bytes)33,125,76010,537,920
Size31.6 MB 10.0 MB
Events in quadrant A246,75967,761
Events in quadrant B264,09369,535
Events in quadrant C222,60067,602
Events in quadrant D227,59366,315

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01836690
B01913715
C01838734
D01852708

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184
B0199
C02210
D0208

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12733597094080
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57100.000000%
B56961.054482%
C55200.000000%
D56400.000000%

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 682 610 0 0 0.00% 0.00%
B 653 610 5 5 0.77% 0.82%
C 634 584 0 0 0.00% 0.00%
D 649 592 0 0 0.00% 0.00%

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 12 189 8752 595.83 61 60 14.6
A 0 23 1925 127.84 61 60 14.6
A 0 226 682 42.64 61 60 14.6
B 4 239 23489 1688.94 61 60 13.9
B 0 219 1455 100.56 61 60 13.9
B 12 111 1296 89.1 61 60 13.9
C 13 61 436 25.17 57 57 15.1
C 3 202 148 6.04 57 57 15.1
C 3 203 135 5.18 57 57 15.1
D 9 85 7324 457.63 57 56 15.9
D 1 52 2296 141.04 57 56 15.9
D 2 234 1942 118.75 57 56 15.9

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