ASTROSAT CZTI

Data Quality Report

Orbit 14151

Creation date: 2024-06-27T16:51:03.721451
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/AS1A04_224T05_9000002088_14151cztM0_level2.evt modeM0/AS1A04_224T05_9000002088_14151cztM0_level2_quad_clean.evt
Size (bytes)419,713,92060,027,840
Size400.3 MB 57.2 MB
Events in quadrant A2,588,848364,221
Events in quadrant B2,551,747368,859
Events in quadrant C2,671,827381,955
Events in quadrant D4,542,529335,298

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110411
B0110071
C0111631
D0169581

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52321082.064220%
B52321332.542049%
C5232941.796636%
D523264212.270642%

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 5508 5234 3 3 0.05% 0.06%
B 5508 5234 1 1 0.02% 0.02%
C 5508 5234 0 0 0.00% 0.00%
D 5508 5234 531 531 9.64% 10.15%

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 66532 496.83 643 629 132.6
A 12 96 26125 192.21 643 629 132.6
A 12 189 23955 175.85 643 629 132.6
B 0 214 21377 164.94 639 624 125.8
B 12 111 15326 116.85 639 624 125.8
B 11 111 13325 100.94 639 624 125.8
C 3 233 219181 1460.44 628 632 149.6
C 14 234 4548 26.17 628 632 149.6
C 13 61 4369 24.97 628 632 149.6
D 1 52 2174778 14890.59 604 589 146.0
D 2 152 34276 230.72 604 589 146.0
D 2 234 21096 140.45 604 589 146.0

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