ASTROSAT CZTI

Data Quality Report

Orbit 27111

Creation date: 2024-06-27T19:36:37.648917
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/AS1T03_244T01_9000003912_27111cztM0_level2.evt modeM0/AS1T03_244T01_9000003912_27111cztM0_level2_quad_clean.evt
Size (bytes)646,272,00094,475,520
Size616.3 MB 90.1 MB
Events in quadrant A3,963,501655,126
Events in quadrant B3,264,935675,078
Events in quadrant C3,229,746638,343
Events in quadrant D8,702,000466,070

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157560
B0134570
C0133290
D0299800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60881151.888962%
B6089510.837576%
C6089891.461652%
D6088193731.816689%

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 7433 6089 57 57 0.77% 0.94%
B 7434 6090 1 1 0.01% 0.02%
C 7434 6090 1 1 0.01% 0.02%
D 7433 6089 1982 1982 26.66% 32.55%

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 14 235 771703 4789.72 816 802 160.9
A 13 248 19534 116.38 816 802 160.9
A 13 254 10545 60.53 816 802 160.9
B 3 112 38599 252.5 815 797 149.7
B 12 111 16888 107.48 815 797 149.7
B 5 172 15488 98.13 815 797 149.7
C 14 238 127353 690.73 790 796 183.2
C 15 208 12270 62.62 790 796 183.2
C 2 16 9427 47.11 790 796 183.2
D 1 52 5190058 28906.36 683 672 179.5
D 7 38 543186 3021.96 683 672 179.5
D 2 250 225170 1250.52 683 672 179.5

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