ASTROSAT CZTI

Data Quality Report

Orbit 43058

Creation date: 2024-06-27T22:47:27.958184
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/AS1A09_006T08_9000005840_43058cztM0_level2.fits modeM0/AS1A09_006T08_9000005840_43058cztM0_level2_quad_clean.evt
Size (bytes)47,790,7208,441,280
Size45.6 MB 8.1 MB
Events in quadrant A400,62056,531
Events in quadrant B261,53656,771
Events in quadrant C233,79555,037
Events in quadrant D831,86245,527

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015491
B011181
C09911
D028091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A489153.067485%
B48930.613497%
C48910.204499%
D4897916.155419%

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 489 489 10 10 2.04% 2.04%
B 489 489 1 1 0.20% 0.20%
C 489 489 0 0 0.00% 0.00%
D 489 489 139 139 28.43% 28.43%

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 10 83 140913 10419.88 53 52 13.5
A 12 189 25095 1852.5 53 52 13.5
A 15 237 17600 1298.07 53 52 13.5
B 5 255 29306 2247.83 53 52 13.0
B 4 171 18874 1446.25 53 52 13.0
B 0 186 2709 204.16 53 52 13.0
C 15 214 26197 1820.51 51 51 14.4
C 3 233 3250 222.74 51 51 14.4
C 1 16 1295 86.62 51 51 14.4
D 2 16 528368 36065.22 50 48 14.6
D 1 52 47536 3241.72 50 48 14.6
D 12 233 38523 2626.46 50 48 14.6

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