ASTROSAT CZTI

Data Quality Report

Orbit 15543

Creation date: 2024-06-27T17:10:04.957618
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_058T09_9000002300_15543cztM0_level2.evt modeM0/AS1G08_058T09_9000002300_15543cztM0_level2_quad_clean.evt
Size (bytes)436,224,96084,980,160
Size416.0 MB 81.0 MB
Events in quadrant A3,200,904548,924
Events in quadrant B3,152,019553,236
Events in quadrant C3,096,114520,634
Events in quadrant D3,339,753516,965

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130512
B0130501
C0128741
D0138231

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6206360.580084%
B6206460.741218%
C6206400.644538%
D6206520.837899%

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 7422 6208 1 1 0.01% 0.02%
B 7422 6207 8 8 0.11% 0.13%
C 7422 6208 2 2 0.03% 0.03%
D 7422 6208 39 39 0.53% 0.63%

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 0 253 133270 829.67 797 783 159.7
A 0 226 7150 39.87 797 783 159.7
A 9 143 6392 35.12 797 783 159.7
B 15 201 29382 192.02 785 766 149.0
B 12 111 17342 111.23 785 766 149.0
B 15 222 15561 99.28 785 766 149.0
C 14 238 116719 668.52 746 752 173.5
C 3 233 28277 158.67 746 752 173.5
C 10 22 27522 154.32 746 752 173.5
D 5 222 316039 1683.12 766 743 187.3
D 1 52 87579 463.55 766 743 187.3
D 2 234 24211 125.28 766 743 187.3

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