ASTROSAT CZTI

Data Quality Report

Orbit 33398

Creation date: 2024-06-27T20:48:23.428082
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/AS1C07_001T03_9000004790_33398cztM0_level2.evt modeM0/AS1C07_001T03_9000004790_33398cztM0_level2_quad_clean.evt
Size (bytes)117,169,92020,813,760
Size111.7 MB 19.8 MB
Events in quadrant A519,211145,613
Events in quadrant B911,029140,492
Events in quadrant C619,261139,481
Events in quadrant D1,420,406119,174

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022442
B034321
C024901
D049881

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A111720.179051%
B1117897.967771%
C1117211.880036%
D111725422.739481%

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 2700 1118 0 0 0.00% 0.00%
B 2700 1118 66 66 2.44% 5.90%
C 2700 1118 15 15 0.56% 1.34%
D 2700 1118 216 216 8.00% 19.32%

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 13 254 1950 64.94 133 130 28.0
A 10 83 1730 57.09 133 130 28.0
A 13 6 1378 44.53 133 130 28.0
B 5 172 252499 9484.68 126 123 26.6
B 4 170 34185 1280.1 126 123 26.6
B 0 245 32498 1216.7 126 123 26.6
C 0 10 77378 2582.51 124 125 29.9
C 15 214 51031 1701.75 124 125 29.9
C 10 49 2293 72.47 124 125 29.9
D 8 195 270135 8980.15 116 112 30.1
D 2 250 181856 6044.26 116 112 30.1
D 12 218 160324 5328.17 116 112 30.1

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