ASTROSAT CZTI

Data Quality Report

Orbit 16132

Creation date: 2024-06-27T17:18:27.586293
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_092T01_9000002384_16132cztM0_level2.evt modeM0/AS1T02_092T01_9000002384_16132cztM0_level2_quad_clean.evt
Size (bytes)853,174,080131,186,880
Size813.7 MB 125.1 MB
Events in quadrant A6,487,590794,085
Events in quadrant B6,927,666797,886
Events in quadrant C5,740,843771,921
Events in quadrant D5,861,283770,166

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02460
B02460
C02460
D02460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0274963
B0286762
C0247902
D0258622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A121313222.654357%
B121312311.904212%
C121311251.030418%
D121311251.030418%

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 13416 12131 164 164 1.22% 1.35%
B 13416 12132 72 72 0.54% 0.59%
C 13416 12132 0 0 0.00% 0.00%
D 13416 12132 63 63 0.47% 0.52%

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 15 174 844270 2920.93 1430 1398 288.6
A 0 253 71687 243.58 1430 1398 288.6
A 15 223 34551 114.89 1430 1398 288.6
B 5 65 800180 2866.8 1437 1397 278.6
B 4 216 122676 435.27 1437 1397 278.6
B 0 189 105262 372.77 1437 1397 278.6
C 14 238 212474 648.67 1382 1392 325.4
C 3 9 73104 220.38 1382 1392 325.4
C 3 233 43713 130.06 1382 1392 325.4
D 1 52 438946 1276.82 1401 1361 342.7
D 2 234 53433 151.94 1401 1361 342.7
D 13 112 39521 111.35 1401 1361 342.7

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