ASTROSAT CZTI

Data Quality Report

Orbit 11350

Creation date: 2024-06-27T16:11:40.470736
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_062T01_9000001660_11350cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11350cztM0_level2_quad_clean.evt
Size (bytes)615,303,36073,327,680
Size586.8 MB 69.9 MB
Events in quadrant A3,276,945459,622
Events in quadrant B4,116,737447,197
Events in quadrant C2,959,440461,113
Events in quadrant D7,831,030388,385

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141782
B0167491
C0134891
D0278571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6643330.496764%
B66433204.817101%
C6643240.361283%
D6643147822.248984%

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 7483 6644 1 1 0.01% 0.02%
B 7483 6644 165 165 2.20% 2.48%
C 7483 6644 0 0 0.00% 0.00%
D 7483 6644 1171 1171 15.65% 17.62%

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 13 210 173609 1107.58 767 749 156.1
A 1 162 44347 279.35 767 749 156.1
A 1 178 26791 166.86 767 749 156.1
B 4 239 716760 4982.17 759 742 143.7
B 3 64 286744 1990.05 759 742 143.7
B 15 204 68708 472.92 759 742 143.7
C 4 175 16732 90.95 753 758 175.6
C 13 61 5475 26.86 753 758 175.6
C 12 4 3375 14.9 753 758 175.6
D 13 152 2467676 15266.75 668 649 161.6
D 10 253 2232341 13810.42 668 649 161.6
D 2 120 291025 1796.94 668 649 161.6

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