ASTROSAT CZTI

Data Quality Report

Orbit 07817

Creation date: 2024-06-27T15:24:23.765187
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/AS1G06_077T02_9000001076_07817cztM0_level2.evt modeM0/AS1G06_077T02_9000001076_07817cztM0_level2_quad_clean.evt
Size (bytes)114,647,04036,561,600
Size109.3 MB 34.9 MB
Events in quadrant A813,691241,800
Events in quadrant B852,867250,565
Events in quadrant C842,889250,170
Events in quadrant D840,289235,585

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035621
B036290
C035850
D036650

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A176100.000000%
B176120.113572%
C176120.113572%
D176120.113572%

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 1761 1761 0 0 0.00% 0.00%
B 1761 1761 0 0 0.00% 0.00%
C 1761 1761 1 1 0.06% 0.06%
D 1761 1761 2 2 0.11% 0.11%

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 3 1 2137 44.75 210 206 43.1
A 0 226 1927 39.89 210 206 43.1
A 12 194 1777 36.41 210 206 43.1
B 4 173 13471 314.41 215 210 42.2
B 12 111 4073 91.59 215 210 42.2
B 11 111 3134 69.33 215 210 42.2
C 1 16 10579 206.64 212 214 50.2
C 12 4 3642 68.34 212 214 50.2
C 13 61 1731 30.24 212 214 50.2
D 12 221 30619 579.08 208 202 52.5
D 13 104 12068 225.91 208 202 52.5
D 2 152 5346 97.93 208 202 52.5

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