ASTROSAT CZTI

Data Quality Report

Orbit 29255

Creation date: 2024-06-27T20:01:57.110605
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/AS1A10_045T08_9000004208_29255cztM0_level2.evt modeM0/AS1A10_045T08_9000004208_29255cztM0_level2_quad_clean.evt
Size (bytes)234,221,7609,673,920
Size223.4 MB 9.2 MB
Events in quadrant A1,083,85042,964
Events in quadrant B1,189,90944,064
Events in quadrant C3,371,92031,437
Events in quadrant D1,323,85642,554

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043241
B047562
C0112351
D052261

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17891025.701509%
B17881196.655481%
C1788147082.214765%
D17881367.606264%

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 3029 1790 0 0 0.00% 0.00%
B 3028 1789 0 0 0.00% 0.00%
C 3028 1789 719 719 23.75% 40.19%
D 3028 1789 17 17 0.56% 0.95%

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 13 4819 78.13 279 274 58.2
A 13 254 3703 58.95 279 274 58.2
A 3 137 2730 42.22 279 274 58.2
B 0 183 49767 917.65 271 265 53.9
B 0 229 39856 733.93 271 265 53.9
B 0 189 11757 213.04 271 265 53.9
C 3 233 2499845 51474.2 202 203 48.6
C 14 238 50288 1031.38 202 203 48.6
C 14 254 28343 579.48 202 203 48.6
D 1 52 183116 2761.1 271 263 66.2
D 8 195 38927 583.83 271 263 66.2
D 13 153 24758 369.88 271 263 66.2

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