ASTROSAT CZTI

Data Quality Report

Orbit 03656

Creation date: 2024-06-27T14:32:01.854449
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/AS1G05_234T02_9000000474_03656cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03656cztM0_level2_quad_clean.evt
Size (bytes)758,623,680111,156,480
Size723.5 MB 106.0 MB
Events in quadrant A5,356,837645,440
Events in quadrant B6,449,343643,025
Events in quadrant C5,048,442641,433
Events in quadrant D5,327,177626,682

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02380
B02380
C02380
D02380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242073
B0269382
C0236692
D0246862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A117011140.974276%
B117011601.367404%
C11701430.367490%
D11701870.743526%

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 13187 11704 25 25 0.19% 0.21%
B 13187 11704 27 27 0.20% 0.23%
C 13187 11704 0 0 0.00% 0.00%
D 13187 11704 32 32 0.24% 0.27%

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 50 146855 537.3 1317 1286 270.9
A 13 14 33284 118.11 1317 1286 270.9
A 8 15 32739 116.09 1317 1286 270.9
B 14 167 527832 2034.2 1335 1301 258.8
B 15 204 309879 1192.16 1335 1301 258.8
B 5 172 137517 526.26 1335 1301 258.8
C 13 61 11041 32.44 1287 1291 300.5
C 1 16 9559 27.51 1287 1291 300.5
C 12 4 6987 18.95 1287 1291 300.5
D 13 239 170903 545.46 1280 1242 311.0
D 13 223 124905 397.58 1280 1242 311.0
D 3 247 73237 231.47 1280 1242 311.0

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