ASTROSAT CZTI

Data Quality Report

Orbit 13605

Creation date: 2024-06-27T16:43:24.748081
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/AS1C03_015T02_9000002008_13605cztM0_level2.evt modeM0/AS1C03_015T02_9000002008_13605cztM0_level2_quad_clean.evt
Size (bytes)418,222,08082,978,560
Size398.8 MB 79.1 MB
Events in quadrant A1,997,280590,086
Events in quadrant B2,255,777594,361
Events in quadrant C2,006,670575,708
Events in quadrant D6,124,622460,583

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085291
B092091
C086511
D0211161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A413970.169123%
B4139280.676492%
C4139190.459048%
D4139147335.588306%

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 4140 4140 0 0 0.00% 0.00%
B 4140 4140 17 17 0.41% 0.41%
C 4140 4140 12 12 0.29% 0.29%
D 4140 4140 1492 1492 36.04% 36.04%

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 1 162 24438 234.99 508 498 101.9
A 1 178 7406 67.81 508 498 101.9
A 1 161 6688 60.76 508 498 101.9
B 0 219 82539 886.04 501 490 92.6
B 3 64 52004 556.3 501 490 92.6
B 10 244 41410 441.89 501 490 92.6
C 3 233 70527 640.17 479 481 109.4
C 0 207 41368 373.68 479 481 109.4
C 14 234 25801 231.41 479 481 109.4
D 13 122 4258806 43024.5 417 405 99.0
D 8 195 106568 1072.61 417 405 99.0
D 5 222 106373 1070.64 417 405 99.0

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