ASTROSAT CZTI

Data Quality Report

Orbit 13184

Creation date: 2024-06-27T16:37:29.664913
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/AS1T02_012T07_9000001958_13184cztM0_level2.evt modeM0/AS1T02_012T07_9000001958_13184cztM0_level2_quad_clean.evt
Size (bytes)33,048,0001,572,480
Size31.5 MB 1.5 MB
Events in quadrant A164,6193,874
Events in quadrant B458,0853,193
Events in quadrant C166,3213,837
Events in quadrant D184,6743,641

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07051
B015880
C07030
D07660

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A35000.000000%
B35015444.000000%
C35000.000000%
D35000.000000%

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 351 351 0 0 0.00% 0.00%
B 351 351 102 102 29.06% 29.06%
C 351 351 0 0 0.00% 0.00%
D 351 351 0 0 0.00% 0.00%

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 8 15 952 87.45 42 41 10.4
A 0 226 378 32.35 42 41 10.4
A 12 194 306 25.44 42 41 10.4
B 4 239 315068 41494.87 28 28 7.6
B 3 64 18503 2433.4 28 28 7.6
B 0 214 5325 697.68 28 28 7.6
C 15 208 363 27.89 42 42 11.5
C 13 61 334 25.37 42 42 11.5
C 8 222 139 8.43 42 42 11.5
D 13 122 12551 1050.13 41 39 11.9
D 1 52 11852 991.46 41 39 11.9
D 8 195 2589 214.02 41 39 11.9

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