ASTROSAT CZTI

Data Quality Report

Orbit 33597

Creation date: 2024-06-27T20:50:36.173038
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/AS1A11_060T01_9000004808_33597cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33597cztM0_level2_quad_clean.evt
Size (bytes)475,787,52067,783,680
Size453.7 MB 64.6 MB
Events in quadrant A2,840,986436,192
Events in quadrant B4,466,609433,644
Events in quadrant C3,185,786426,781
Events in quadrant D3,573,042401,073

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114303
B0166312
C0126952
D0140772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5063280.553032%
B506351810.231088%
C5063791.560340%
D50631022.014616%

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 7186 5064 10 10 0.14% 0.20%
B 7186 5064 416 416 5.79% 8.21%
C 7186 5064 81 81 1.13% 1.60%
D 7186 5064 110 110 1.53% 2.17%

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 15 169 369804 2917.69 638 628 126.5
A 13 254 7604 55.13 638 628 126.5
A 10 83 6607 47.25 638 628 126.5
B 5 172 1522266 12792.54 622 606 118.9
B 0 213 262140 2198.71 622 606 118.9
B 15 222 119599 1000.37 622 606 118.9
C 0 10 241604 1660.22 627 633 145.1
C 15 214 217424 1493.63 627 633 145.1
C 3 233 138329 948.69 627 633 145.1
D 8 195 451247 3047.04 616 601 147.9
D 2 250 332521 2244.28 616 601 147.9
D 1 52 134370 904.48 616 601 147.9

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