ASTROSAT CZTI

Data Quality Report

Orbit 04568

Creation date: 2024-06-27T14:43:54.012959
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/AS1G05_233T10_9000000570_04568cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04568cztM0_level2_quad_clean.evt
Size (bytes)1,586,969,280271,615,680
Size1.5 GB 259.0 MB
Events in quadrant A10,325,1221,702,304
Events in quadrant B12,362,3941,664,759
Events in quadrant C11,087,3131,658,802
Events in quadrant D12,717,9971,603,027

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0475285
B0524464
C0496904
D0544544

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04700
B04700
C04700
D04700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A232181280.551296%
B232183381.455767%
C232182310.994918%
D232185982.575588%

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 25823 23222 11 11 0.04% 0.05%
B 25823 23222 102 102 0.39% 0.44%
C 25823 23222 82 82 0.32% 0.35%
D 25822 23221 382 382 1.48% 1.65%

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 13 251 98729 179.96 2625 2561 534.4
A 7 16 50784 90.24 2625 2561 534.4
A 12 194 26918 45.58 2625 2561 534.4
B 14 167 907735 1800.48 2641 2572 502.7
B 5 70 207492 407.61 2641 2572 502.7
B 4 80 194370 381.51 2641 2572 502.7
C 14 48 559521 942.42 2550 2555 591.0
C 9 247 511432 861.05 2550 2555 591.0
C 13 61 21229 31.6 2550 2555 591.0
D 13 235 1406556 2291.37 2532 2461 612.8
D 7 67 366783 594.54 2532 2461 612.8
D 2 136 325637 527.4 2532 2461 612.8

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