ASTROSAT CZTI

Data Quality Report

Orbit 09283

Creation date: 2024-06-27T15:43:54.194757
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/AS1G07_077T01_9000001306_09283cztM0_level2.evt modeM0/AS1G07_077T01_9000001306_09283cztM0_level2_quad_clean.evt
Size (bytes)816,494,400125,035,200
Size778.7 MB 119.2 MB
Events in quadrant A6,746,069727,084
Events in quadrant B5,335,565774,958
Events in quadrant C5,090,472781,882
Events in quadrant D6,791,599723,114

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0318544916
B0270833628
C0266943380
D0325534861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026840
B026832
C026836
D026824

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A110855695.133063%
B112694063.602804%
C113452912.565007%
D111667076.331721%

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 13459 12056 136 136 1.01% 1.13%
B 13459 12235 1 1 0.01% 0.01%
C 13459 12255 0 0 0.00% 0.00%
D 13459 12093 352 352 2.62% 2.91%

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 8 5 1179802 4555.87 1274 1244 258.7
A 4 2 417073 1607.44 1274 1244 258.7
A 1 162 82574 314.39 1274 1244 258.7
B 0 219 68808 266.21 1317 1279 253.7
B 0 214 66122 255.62 1317 1279 253.7
B 8 234 40034 152.78 1317 1279 253.7
C 14 234 15253 46.57 1296 1297 299.7
C 14 67 11132 32.82 1296 1297 299.7
C 8 222 10739 31.51 1296 1297 299.7
D 1 52 1307211 4289.22 1243 1206 304.5
D 12 233 497607 1630.3 1243 1206 304.5
D 7 71 66121 213.2 1243 1206 304.5

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