ASTROSAT CZTI

Data Quality Report

Orbit 15869

Creation date: 2024-06-27T17:14:35.123791
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_143T01_9000002344_15869cztM0_level2.evt modeM0/AS1A04_143T01_9000002344_15869cztM0_level2_quad_clean.evt
Size (bytes)31,512,9609,403,200
Size30.1 MB 9.0 MB
Events in quadrant A237,92662,024
Events in quadrant B224,73962,013
Events in quadrant C240,50758,290
Events in quadrant D212,38357,921

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06149
B06252
C06149
D06357

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066865620
B064555431
C064755435
D062285214

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011
B111
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52500.000000%
B51200.000000%
C50620.395257%
D50600.000000%

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 1186 711 0 0 0.00% 0.00%
B 1144 705 0 0 0.00% 0.00%
C 1934 687 0 0 0.00% 0.00%
D 2936 704 0 0 0.00% 0.00%

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 15 239 10702 755.63 58 57 14.1
A 9 143 1354 92.07 58 57 14.1
A 0 226 497 31.23 58 57 14.1
B 12 111 1334 94.63 57 56 13.5
B 11 111 1121 78.86 57 56 13.5
B 14 111 1018 71.23 57 56 13.5
C 14 238 8322 560.48 54 55 14.7
C 10 22 5835 391.87 54 55 14.7
C 0 207 4763 319.19 54 55 14.7
D 2 234 2032 126.79 55 53 15.6
D 1 52 1531 94.69 55 53 15.6
D 12 110 827 49.59 55 53 15.6

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