ASTROSAT CZTI

Data Quality Report

Orbit 18759

Creation date: 2024-06-27T17:54:29.526018
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_115T03_9000002806_18759cztM0_level2.evt modeM0/AS1A05_115T03_9000002806_18759cztM0_level2_quad_clean.evt
Size (bytes)171,066,24018,705,600
Size163.1 MB 17.8 MB
Events in quadrant A1,286,585102,770
Events in quadrant B1,264,567104,555
Events in quadrant C1,243,498102,421
Events in quadrant D1,240,020102,609

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052221
B050911
C049821
D049521

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21171054.959849%
B21171185.573925%
C21171265.951819%
D2117914.298536%

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 3382 2118 0 0 0.00% 0.00%
B 3382 2118 0 0 0.00% 0.00%
C 3382 2118 0 0 0.00% 0.00%
D 3382 2118 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 11 29 14189 207.67 324 318 66.8
A 8 205 12221 178.21 324 318 66.8
A 15 192 10499 152.43 324 318 66.8
B 10 245 9215 140.54 318 310 63.4
B 4 216 9151 139.53 318 310 63.4
B 12 111 7374 111.49 318 310 63.4
C 14 238 47329 644.35 306 310 73.0
C 13 61 2090 24.39 306 310 73.0
C 14 111 714 5.54 306 310 73.0
D 13 168 24912 318.74 316 307 77.2
D 7 223 13561 171.69 316 307 77.2
D 2 234 9081 113.66 316 307 77.2

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