ASTROSAT CZTI

Data Quality Report

Orbit 42984

Creation date: 2024-06-27T22:46:33.829231
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/AS1T05_148T01_9000005838_42984cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_42984cztM0_level2_quad_clean.evt
Size (bytes)367,401,600103,772,160
Size350.4 MB 99.0 MB
Events in quadrant A3,055,065744,569
Events in quadrant B4,333,036690,414
Events in quadrant C2,739,412717,482
Events in quadrant D3,075,582632,641

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124572
B0163702
C0113292
D0126412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5101250.490100%
B51014278.370908%
C510030.058824%
D51001472.882353%

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 7044 5102 11 11 0.16% 0.22%
B 7044 5102 280 280 3.98% 5.49%
C 7043 5101 2 2 0.03% 0.04%
D 7043 5101 127 127 1.80% 2.49%

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 568258 4053.32 616 605 140.0
A 15 237 66592 471.18 616 605 140.0
A 15 222 16307 112.12 616 605 140.0
B 4 81 1276447 10350.57 583 570 123.3
B 4 171 672612 5451.95 583 570 123.3
B 5 255 45085 361.13 583 570 123.3
C 15 214 207967 1355.67 600 606 153.0
C 14 254 163712 1066.34 600 606 153.0
C 7 220 12057 74.86 600 606 153.0
D 13 249 273943 1753.19 584 565 155.9
D 10 118 155479 993.47 584 565 155.9
D 12 6 114403 730.05 584 565 155.9

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