ASTROSAT CZTI

Data Quality Report

Orbit 05036

Creation date: 2024-06-27T14:50:28.617223
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_250T02_9000000638_05036cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05036cztM0_level2_quad_clean.evt
Size (bytes)733,625,280124,588,800
Size699.6 MB 118.8 MB
Events in quadrant A4,974,508770,145
Events in quadrant B5,508,421774,290
Events in quadrant C4,729,591773,131
Events in quadrant D6,293,293727,574

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217103
B0230402
C0213952
D0259502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A105091171.113331%
B105091371.303644%
C10509660.628033%
D105093583.406604%

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 13009 10511 3 3 0.02% 0.03%
B 13009 10511 4 4 0.03% 0.04%
C 13009 10511 0 0 0.00% 0.00%
D 13009 10511 203 203 1.56% 1.93%

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 15 174 45073 172.02 1259 1232 254.9
A 0 50 33168 125.31 1259 1232 254.9
A 0 247 29203 109.75 1259 1232 254.9
B 15 204 327418 1365.38 1261 1231 238.9
B 4 48 173642 721.69 1261 1231 238.9
B 0 219 81241 334.91 1261 1231 238.9
C 9 54 14735 49.27 1206 1213 274.5
C 1 16 10535 33.96 1206 1213 274.5
C 13 61 9831 31.4 1206 1213 274.5
D 13 235 679512 2331.49 1202 1163 291.0
D 12 227 532951 1827.76 1202 1163 291.0
D 12 233 295212 1010.65 1202 1163 291.0

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