ASTROSAT CZTI

Data Quality Report

Orbit 41209

Creation date: 2024-06-27T22:25:58.180244
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_001T12_9000005632_41209cztM0_level2.fits modeM0/AS1C07_001T12_9000005632_41209cztM0_level2_quad_clean.evt
Size (bytes)331,614,72088,640,640
Size316.3 MB 84.5 MB
Events in quadrant A2,842,109590,179
Events in quadrant B2,748,636601,659
Events in quadrant C3,131,893575,659
Events in quadrant D3,121,337529,446

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119973
B0124862
C0132582
D0135442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A553360.108440%
B5533350.632568%
C55331492.692933%
D55331562.819447%

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 7207 5535 4 4 0.06% 0.07%
B 7207 5535 17 17 0.24% 0.31%
C 7207 5535 139 139 1.93% 2.51%
D 7207 5535 135 135 1.87% 2.44%

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 535951 4549.99 572 560 117.7
A 12 189 61067 514.22 572 560 117.7
A 2 79 16692 137.1 572 560 117.7
B 0 186 236253 2138.65 569 554 110.2
B 0 229 155002 1401.4 569 554 110.2
B 0 190 110576 998.3 569 554 110.2
C 14 254 475083 3699.96 555 559 128.3
C 0 10 239175 1860.54 555 559 128.3
C 15 214 235936 1835.28 555 559 128.3
D 13 249 409659 3031.1 551 534 135.0
D 12 16 402889 2980.94 551 534 135.0
D 2 249 59721 438.5 551 534 135.0

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