ASTROSAT CZTI

Data Quality Report

Orbit 13603

Creation date: 2024-06-27T16:43:18.711038
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_028T01_9000002006_13603cztM0_level2.evt modeM0/AS1G08_028T01_9000002006_13603cztM0_level2_quad_clean.evt
Size (bytes)31,279,6808,714,880
Size29.8 MB 8.3 MB
Events in quadrant A210,39558,328
Events in quadrant B222,81760,178
Events in quadrant C220,57058,511
Events in quadrant D266,05053,605

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08451
B09211
C08901
D010441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A35441.129944%
B354123.389831%
C35430.847458%
D354113.107345%

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 355 355 0 0 0.00% 0.00%
B 355 355 0 0 0.00% 0.00%
C 355 355 0 0 0.00% 0.00%
D 355 355 6 6 1.69% 1.69%

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 0 226 497 33.0 54 53 13.5
A 12 194 425 27.65 54 53 13.5
A 15 69 392 25.2 54 53 13.5
B 0 219 2071 155.57 55 54 13.0
B 12 111 1195 88.01 55 54 13.0
B 4 142 1027 75.05 55 54 13.0
C 3 233 9520 650.76 54 54 14.5
C 13 61 371 21.79 54 54 14.5
C 0 207 138 5.77 54 54 14.5
D 13 122 53937 3749.94 50 49 14.4
D 5 222 5642 389.2 50 49 14.4
D 13 249 5333 367.7 50 49 14.4

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