ASTROSAT CZTI

Data Quality Report

Orbit 00606

Creation date: 2024-06-27T14:00:28.123037
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/AS1P01_126T01_9000000084_00606cztM0_level2.evt modeM0/AS1P01_126T01_9000000084_00606cztM0_level2_quad_clean.evt
Size (bytes)822,090,24065,753,280
Size784.0 MB 62.7 MB
Events in quadrant A6,281,903408,190
Events in quadrant B6,510,892420,614
Events in quadrant C5,921,139405,675
Events in quadrant D5,833,242387,954

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224093
B0230422
C0213082
D0211042

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5264470.892857%
B5264110.208967%
C526440.075988%
D5264480.911854%

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 7419 5265 183 183 2.47% 3.48%
B 7419 5265 147 147 1.98% 2.79%
C 7419 5265 63 63 0.85% 1.20%
D 7419 5265 111 111 1.50% 2.11%

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 15 171 176866 510.78 1543 1520 343.3
A 0 238 58128 164.9 1543 1520 343.3
A 0 149 51717 146.22 1543 1520 343.3
B 7 221 199892 541.64 1577 1582 366.1
B 4 250 117867 317.61 1577 1582 366.1
B 0 220 67649 180.45 1577 1582 366.1
C 7 190 134341 328.19 1460 1515 404.7
C 3 159 19704 44.94 1460 1515 404.7
C 1 1 10349 21.83 1460 1515 404.7
D 1 4 194177 445.01 1383 1438 433.1
D 13 221 192381 440.87 1383 1438 433.1
D 10 141 30336 66.72 1383 1438 433.1

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