ASTROSAT CZTI

Data Quality Report

Orbit 42999

Creation date: 2024-06-27T22:46:44.388363
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/AS1T05_148T01_9000005838_42999cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_42999cztM0_level2_quad_clean.evt
Size (bytes)331,968,960106,689,600
Size316.6 MB 101.7 MB
Events in quadrant A3,230,518743,836
Events in quadrant B2,755,961753,255
Events in quadrant C2,698,769719,555
Events in quadrant D3,188,433641,007

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131402
B0116292
C0113122
D0132072

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5325711.333333%
B5325360.676056%
C5325150.281690%
D53251182.215962%

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 7118 5326 53 53 0.74% 1.00%
B 7118 5325 18 18 0.25% 0.34%
C 7118 5325 9 9 0.13% 0.17%
D 7118 5325 112 112 1.57% 2.10%

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 10 83 580832 4139.13 633 622 140.2
A 15 237 152895 1086.29 633 622 140.2
A 7 3 39757 279.18 633 622 140.2
B 5 255 106928 807.92 633 620 131.6
B 4 171 100272 757.34 633 620 131.6
B 3 112 52519 394.42 633 620 131.6
C 15 214 217337 1391.97 617 623 155.7
C 5 250 62142 395.14 617 623 155.7
C 12 249 6368 36.9 617 623 155.7
D 1 47 374028 2323.95 605 587 160.7
D 10 118 152264 943.9 605 587 160.7
D 1 52 89105 550.85 605 587 160.7

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