ASTROSAT CZTI

Data Quality Report

Orbit 13049

Creation date: 2024-06-27T16:35:46.331456
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_045T01_9000001920_13049cztM0_level2.evt modeM0/AS1G08_045T01_9000001920_13049cztM0_level2_quad_clean.evt
Size (bytes)1,166,382,720163,463,040
Size1.1 GB 155.9 MB
Events in quadrant A7,625,5011,025,468
Events in quadrant B11,434,812975,386
Events in quadrant C6,244,8681,034,572
Events in quadrant D9,098,323973,434

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02760
B02760
C02760
D02760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0313254
B0428063
C0278893
D0362283

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A136362792.046055%
B13636214215.708419%
C136361290.946025%
D136367485.485480%

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 15352 13640 44 44 0.29% 0.32%
B 15352 13639 1129 1129 7.35% 8.28%
C 15352 13640 0 0 0.00% 0.00%
D 15352 13640 471 471 3.07% 3.45%

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 8 15 866053 2589.41 1628 1592 333.8
A 12 189 215646 641.18 1628 1592 333.8
A 1 162 129973 384.55 1628 1592 333.8
B 4 239 3782022 13145.82 1500 1460 287.6
B 0 85 1041803 3617.49 1500 1460 287.6
B 3 64 384191 1330.84 1500 1460 287.6
C 8 128 14277 34.29 1592 1600 369.7
C 13 61 11831 27.67 1592 1600 369.7
C 8 112 8474 18.59 1592 1600 369.7
D 1 52 2534509 6760.58 1545 1499 374.7
D 8 195 432263 1149.7 1545 1499 374.7
D 10 157 175719 464.99 1545 1499 374.7

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