ASTROSAT CZTI

Data Quality Report

Orbit 32210

Creation date: 2024-06-27T20:37:37.808768
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/AS1A10_057T01_9000004692_32210cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32210cztM0_level2_quad_clean.evt
Size (bytes)1,097,542,080145,460,160
Size1.0 GB 138.7 MB
Events in quadrant A5,327,422935,290
Events in quadrant B8,616,371943,679
Events in quadrant C5,910,197923,775
Events in quadrant D12,656,649853,636

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229803
B0335222
C0245362
D0452952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02200
B02200
C02200
D02200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10815790.730467%
B108152632.431808%
C108158768.099861%
D10815140813.018955%

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 12760 10818 0 0 0.00% 0.00%
B 12760 10818 15 15 0.12% 0.14%
C 12760 10818 38 38 0.30% 0.35%
D 12760 10818 901 901 7.06% 8.33%

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 12 189 101813 382.79 1327 1304 262.6
A 0 6 83052 311.34 1327 1304 262.6
A 13 254 19443 69.08 1327 1304 262.6
B 6 159 3096894 12574.09 1316 1284 246.2
B 0 190 108696 436.3 1316 1284 246.2
B 0 229 83072 332.22 1316 1284 246.2
C 14 238 421317 1454.57 1242 1252 288.8
C 14 254 299793 1033.76 1242 1252 288.8
C 0 207 187229 643.99 1242 1252 288.8
D 5 172 3384274 11592.48 1232 1200 291.8
D 8 195 2631583 9013.3 1232 1200 291.8
D 2 250 1385961 4745.04 1232 1200 291.8

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