ASTROSAT CZTI

Data Quality Report

Orbit 03285

Creation date: 2024-06-27T14:27:07.569243
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/AS1G05_228T02_9000000446_03285cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03285cztM0_level2_quad_clean.evt
Size (bytes)533,937,60055,379,520
Size509.2 MB 52.8 MB
Events in quadrant A3,263,362313,575
Events in quadrant B4,576,588315,387
Events in quadrant C4,599,771308,812
Events in quadrant D3,307,235302,451

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136753
B0177522
C0179282
D0141082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6254871.391110%
B62542904.637032%
C62541983.165974%
D6254951.519028%

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 7499 6255 36 36 0.48% 0.58%
B 7499 6255 145 145 1.93% 2.32%
C 7499 6255 137 137 1.83% 2.19%
D 7499 6255 70 70 0.93% 1.12%

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 50 143275 920.14 766 750 154.9
A 14 249 66672 425.59 766 750 154.9
A 0 118 50317 320.0 766 750 154.9
B 2 249 836666 5639.64 770 752 148.2
B 15 204 701546 4728.03 770 752 148.2
B 5 200 20569 133.7 770 752 148.2
C 14 223 1641583 9575.2 736 739 171.4
C 6 80 49084 282.12 736 739 171.4
C 1 192 19017 106.66 736 739 171.4
D 13 239 246682 1391.33 731 709 176.8
D 13 223 196160 1105.56 731 709 176.8
D 5 233 47874 266.79 731 709 176.8

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