ASTROSAT CZTI

Data Quality Report

Orbit 32965

Creation date: 2024-06-27T20:43:58.217456
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/AS1C07_001T01_9000004752_32965cztM0_level2.evt modeM0/AS1C07_001T01_9000004752_32965cztM0_level2_quad_clean.evt
Size (bytes)552,047,040106,058,880
Size526.5 MB 101.1 MB
Events in quadrant A2,615,533726,346
Events in quadrant B3,733,246721,640
Events in quadrant C3,436,998708,465
Events in quadrant D6,535,213644,829

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118473
B0150912
C0142852
D0236492

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A587470.119169%
B58742253.830439%
C58742534.307116%
D587459110.061287%

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 5875 2 2 0.03% 0.03%
B 7186 5875 141 141 1.96% 2.40%
C 7186 5875 202 202 2.81% 3.44%
D 7186 5875 485 485 6.75% 8.26%

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 14 238 17913 129.85 665 652 132.9
A 12 227 13268 94.91 665 652 132.9
A 13 254 10556 74.5 665 652 132.9
B 5 172 602486 4882.1 654 638 123.3
B 0 219 220274 1781.65 654 638 123.3
B 5 200 93362 752.16 654 638 123.3
C 1 241 600347 4115.49 631 634 145.7
C 0 10 318381 2180.52 631 634 145.7
C 3 233 21474 143.01 631 634 145.7
D 8 195 1226177 7671.41 616 603 159.8
D 2 250 673215 4210.18 616 603 159.8
D 7 223 634453 3967.55 616 603 159.8

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