ASTROSAT CZTI

Data Quality Report

Orbit 00382

Creation date: 2024-06-27T13:59:12.917870
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/AS1P01_161T05_9000000058_00382cztM0_level2.evt modeM0/AS1P01_161T05_9000000058_00382cztM0_level2_quad_clean.evt
Size (bytes)885,778,56040,078,080
Size844.7 MB 38.2 MB
Events in quadrant A6,702,712222,252
Events in quadrant B5,783,992219,471
Events in quadrant C5,869,235226,713
Events in quadrant D8,134,879190,020

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235413
B0207702
C0210472
D0278302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50542023.996834%
B505430.059359%
C5054300.593589%
D505466813.217254%

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 7268 5055 466 466 6.41% 9.22%
B 7268 5055 40 40 0.55% 0.79%
C 7268 5055 145 145 2.00% 2.87%
D 7268 5055 1187 1187 16.33% 23.48%

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 0 69 955148 2918.8 1458 1444 326.7
A 0 238 53043 157.92 1458 1444 326.7
A 12 243 23655 67.98 1458 1444 326.7
B 15 82 14910 37.94 1495 1504 353.3
B 7 221 12362 30.73 1495 1504 353.3
B 0 182 12050 29.85 1495 1504 353.3
C 1 1 290266 761.66 1356 1403 379.3
C 3 159 170501 445.87 1356 1403 379.3
C 5 234 43810 111.82 1356 1403 379.3
D 13 7 2929875 7623.54 1222 1267 384.2
D 12 237 168612 435.62 1222 1267 384.2
D 1 5 102002 262.22 1222 1267 384.2

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