ASTROSAT CZTI

Data Quality Report

Orbit 28061

Creation date: 2024-06-27T19:47:37.352289
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/AS1A10_057T02_9000004054_28061cztM0_level2.evt modeM0/AS1A10_057T02_9000004054_28061cztM0_level2_quad_clean.evt
Size (bytes)1,477,725,120219,893,760
Size1.4 GB 209.7 MB
Events in quadrant A8,108,5671,426,148
Events in quadrant B10,479,5381,405,267
Events in quadrant C8,259,0161,374,289
Events in quadrant D16,758,2561,280,289

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0356600
B0426680
C0357140
D0616820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17027640.375874%
B1702810406.107588%
C170281751.027719%
D17027177610.430493%

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 19037 17030 0 0 0.00% 0.00%
B 19038 17030 732 732 3.84% 4.30%
C 19038 17031 8 8 0.04% 0.05%
D 19037 17028 1354 1354 7.11% 7.95%

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 13 292908 718.26 2019 1976 405.0
A 13 254 28640 65.83 2019 1976 405.0
A 3 137 19665 43.67 2019 1976 405.0
B 10 245 2636135 7093.41 1966 1913 371.4
B 12 111 46961 121.3 1966 1913 371.4
B 11 111 42016 107.99 1966 1913 371.4
C 3 233 384285 848.88 1925 1937 450.4
C 14 238 307089 677.49 1925 1937 450.4
C 15 208 54174 115.98 1925 1937 450.4
D 8 195 5528473 12500.45 1865 1818 442.1
D 1 52 2179489 4925.56 1865 1818 442.1
D 2 250 1270534 2869.64 1865 1818 442.1

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