ASTROSAT CZTI

Data Quality Report

Orbit 17103

Creation date: 2024-06-27T17:32:07.193080
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_004T06_9000002536_17103cztM0_level2.evt modeM0/AS1A05_004T06_9000002536_17103cztM0_level2_quad_clean.evt
Size (bytes)190,290,24049,173,120
Size181.5 MB 46.9 MB
Events in quadrant A1,200,783331,255
Events in quadrant B1,372,752331,930
Events in quadrant C1,243,091319,062
Events in quadrant D1,758,925311,688

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0549624
B0594316
C0551324
D0715243

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A271740.147221%
B272180.294010%
C2717110.404858%
D27181114.083885%

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 2728 2726 1 1 0.04% 0.04%
B 2729 2728 4 4 0.15% 0.15%
C 2729 2729 0 0 0.00% 0.00%
D 2729 2729 83 83 3.04% 3.04%

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 4 2 5333 77.55 310 303 64.9
A 0 226 2895 39.96 310 303 64.9
A 12 194 2353 31.6 310 303 64.9
B 4 216 93581 1531.72 306 298 60.9
B 7 220 34949 568.97 306 298 60.9
B 0 189 11571 185.1 306 298 60.9
C 14 238 45616 646.73 296 298 70.1
C 3 233 21902 308.31 296 298 70.1
C 9 54 11126 154.53 296 298 70.1
D 5 222 462659 6298.4 301 292 73.4
D 10 70 109842 1492.3 301 292 73.4
D 12 110 16892 226.13 301 292 73.4

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