ASTROSAT CZTI

Data Quality Report

Orbit 16718

Creation date: 2024-06-27T17:26:41.004528
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/AS1A05_059T03_9000002474_16718cztM0_level2.evt modeM0/AS1A05_059T03_9000002474_16718cztM0_level2_quad_clean.evt
Size (bytes)543,032,640135,118,080
Size517.9 MB 128.9 MB
Events in quadrant A4,088,297928,376
Events in quadrant B3,667,111955,688
Events in quadrant C3,454,525907,968
Events in quadrant D4,813,328865,177

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162592
B0149221
C0143761
D0184221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62302964.751204%
B6230961.540931%
C62301181.894061%
D62304216.757624%

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 7586 6232 188 188 2.48% 3.02%
B 7586 6232 11 11 0.15% 0.18%
C 7586 6232 15 15 0.20% 0.24%
D 7586 6232 247 247 3.26% 3.96%

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 975885 6137.15 803 789 158.9
A 9 143 12960 76.6 803 789 158.9
A 0 226 7585 42.77 803 789 158.9
B 15 35 146378 983.82 813 797 148.0
B 0 229 103199 692.02 813 797 148.0
B 0 189 55998 373.04 813 797 148.0
C 3 233 172091 988.86 766 772 173.2
C 0 207 138140 792.89 766 772 173.2
C 14 238 123698 709.53 766 772 173.2
D 1 52 925330 5093.89 761 741 181.5
D 5 222 522963 2877.11 761 741 181.5
D 11 176 142843 782.89 761 741 181.5

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