ASTROSAT CZTI

Data Quality Report

Orbit 11280

Creation date: 2024-06-27T16:10:42.794310
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/AS1A04_080T03_9000001650_11280cztM0_level2.evt modeM0/AS1A04_080T03_9000001650_11280cztM0_level2_quad_clean.evt
Size (bytes)170,847,3609,636,480
Size162.9 MB 9.2 MB
Events in quadrant A1,926,42539,667
Events in quadrant B1,005,22641,296
Events in quadrant C868,39643,282
Events in quadrant D1,255,08040,674

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069162
B041491
C037771
D048501

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A171845926.717113%
B17181609.313155%
C1718965.587893%
D17181448.381839%

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 1733 1719 206 206 11.89% 11.98%
B 1733 1719 16 16 0.92% 0.93%
C 1733 1719 0 0 0.00% 0.00%
D 1733 1719 35 35 2.02% 2.04%

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 993858 22536.54 202 197 44.1
A 14 238 121710 2755.95 202 197 44.1
A 8 15 8741 193.78 202 197 44.1
B 3 64 74562 1672.7 216 209 44.5
B 4 239 68629 1539.23 216 209 44.5
B 4 81 11322 250.01 216 209 44.5
C 9 204 2526 42.98 221 221 53.6
C 13 61 1539 24.57 221 221 53.6
C 14 234 621 7.46 221 221 53.6
D 13 152 141540 2585.48 216 208 54.7
D 12 157 128945 2355.07 216 208 54.7
D 1 52 71963 1312.66 216 208 54.7

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