ASTROSAT CZTI

Data Quality Report

Orbit 43077

Creation date: 2024-06-27T22:47:42.639642
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_001T10_9000005844_43077cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43077cztM0_level2_quad_clean.evt
Size (bytes)355,950,72088,159,680
Size339.5 MB 84.1 MB
Events in quadrant A3,222,836590,976
Events in quadrant B2,874,680604,825
Events in quadrant C2,601,201581,395
Events in quadrant D4,043,463502,183

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131241
B0124501
C0113631
D0160901

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5569470.843958%
B5570671.202873%
C557040.071813%
D55704197.522442%

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 7122 5570 39 39 0.55% 0.70%
B 7123 5571 44 44 0.62% 0.79%
C 7123 5571 0 0 0.00% 0.00%
D 7123 5571 381 381 5.35% 6.84%

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 554381 4506.81 597 584 122.9
A 15 237 155782 1263.01 597 584 122.9
A 13 248 105312 852.28 597 584 122.9
B 5 255 319495 2756.71 595 580 115.7
B 0 229 124924 1074.83 595 580 115.7
B 0 189 48950 418.11 595 580 115.7
C 15 214 248120 1808.4 583 584 136.9
C 3 233 44354 319.77 583 584 136.9
C 12 249 13947 97.62 583 584 136.9
D 2 16 1308514 9385.17 567 550 139.4
D 1 52 230187 1647.74 567 550 139.4
D 13 249 161416 1154.28 567 550 139.4

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