伊豆の美術解剖学者 engagement report
@kato_anatomy - 436K followers on X
Measured over 37 original posts from a 30-day window, last computed on August 30, 2026.
Engagement
A typical post picks up 163 interactions against 436K followers, an engagement rate of 0.037%. Measured over 37 original posts, its engagement rate beats 51% of 3,848 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 28K times each, and 0.577% of those impressions turn into an interaction. That is about 6.49% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2 posts a day over the last 30 days, with activity on roughly 60% of days. Most posts go out around 12:00 UTC, and Saturday is the busiest day of the week. Of the 37 posts sampled, 100% carry an image or video and 8% link out. The account's strongest tracked post pulled 2.8K interactions, about 17x its own typical post.
Measured over 37 original posts from a 30-day window, last computed on August 30, 2026. Recurring tag: #伊豆の美術解剖学者.
Compared with accounts its own size
伊豆の美術解剖学者's engagement rate beats 51% of the tracked X accounts closest to it in follower count (3,848 accounts, accounts of similar size (decile 7 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.
On engagement per impression rather than per follower it beats 37% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.
Where this sits in the catalog
At 0.037%, 伊豆の美術解剖学者 sits above the 25th percentile of the 37,320 accounts in this comparison. That places it in the below the median band, which runs 0.012% to 0.081%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.002% |
| 25th percentile | 0.012% |
| 50th percentile | 0.081% |
| 75th percentile | 0.436% |
| 90th percentile | 2.10% |
| 99th percentile | 160.1% |
This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built
Posting timing
This account posts most often around 12:00 UTC, and Saturday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 00:00 UTC | -1% | 52K |
| 01:00 UTC | -2% | 53K |
| 02:00 UTC | -3% | 51K |
| 03:00 UTC | -4% | 55K |
| 04:00 UTC | -6% | 44K |
| 05:00 UTC | -4% | 43K |
| 06:00 UTC | -4% | 49K |
| 07:00 UTC | -5% | 53K |
| 08:00 UTC | -4% | 62K |
| 09:00 UTC | -3% | 71K |
| 10:00 UTC | -2% | 74K |
| 11:00 UTC | -3% | 80K |
| 12:00 UTC | -2% | 88K |
| 13:00 UTC | -2% | 97K |
| 14:00 UTC | -4% | 100K |
| 15:00 UTC | -2% | 103K |
| 16:00 UTC | -3% | 100K |
| 17:00 UTC | -3% | 93K |
| 18:00 UTC | -2% | 87K |
| 19:00 UTC | -2% | 82K |
| 20:00 UTC | -1% | 76K |
| 21:00 UTC | -1% | 67K |
| 22:00 UTC | -1% | 58K |
| 23:00 UTC | -1% | 52K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +5% | 235K |
| Monday | 0% | 296K |
| Tuesday | -3% | 292K |
| Wednesday | -1% | 254K |
| Thursday | -2% | 248K |
| Friday | -3% | 256K |
| Saturday | +3% | 230K |
Best tweets
- Aug 29, 202617x their median
肩から肘の筋の講義資料 https://t.co/jqcNMHVaHU
- Aug 16, 202615x their median
本日の戦利品:めばえあにめさんの同人誌。解剖用語の略称が使われているのを見かけて一括購入。 https://t.co/wL7tN4kl5y
- Aug 29, 202611x their median
肘から先の骨の講義資料 https://t.co/3dYRBPIfUQ
- Aug 18, 20266.8x their median
「皮膚」を油彩で描く。写真的な再現にとどまらず、被写体に独自の質感と深遠な概念的深みを吹き込んだ絵画。透明な絵の具を薄く溶いて乾いた下層の上から塗り重ねるグレーズ技法で細密に描き、その後サンドペーパーなどの道具を使ってそれを剥ぎ取るという制作過程を経ることで、実際の皮膚の物理的構造を模倣している。 ドイツ出身のアーティスト、ルーカス・ルツィウス・ライヒトレの作品。
- Apr 18, 20256.5x their median
ボーンデジタルさんから『見る・知る・描くの美術解剖学ドリル 骨・男性編』の見本が届きました。4/28に発売です。どうぞよろしくお願いします。 https://t.co/UbrpcgEwy8
- Aug 18, 20265.3x their median
先日、骨っぽい造形があるぞと思って、GOLEM展に行ってきました。 https://t.co/KZHsi8i43H
- Aug 22, 20264.3x their median
通販でお取り寄せしたC108同人誌。 左の下半身解説本では、美術解剖学本にない会陰の解説が載っています。 右のウマ娘本はトレーニングのポーズをしたイラストが載ってます。 https://t.co/nskKRO7HWF
- Aug 28, 20262.9x their median
『アクションポーズの美術解剖学』の中身16。やられたときのポーズもお願いしました。 https://t.co/H6iyF2jBWk
- Aug 29, 20262.7x their median
X君の検閲?で投稿できなかったので再投稿 https://t.co/oop2r1Hm65
- Aug 6, 20262.4x their median
夏コミの新刊届きました。天心流のまーこ先生にモデルをしていただきました。前半は色分け図、後半は筋肉図になっています。 https://t.co/PrnTExZRmI
Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.
Recurring topics
The most frequent hashtags in the sampled posts. They describe what this account writes about; they are not a performance signal, and the catalog-wide breakdown on the hub shows how little hashtag count moves.
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Reading these numbers
A typical post picks up 163 interactions against 436K followers, an engagement rate of 0.037%. Measured over 37 original posts, its engagement rate beats 51% of 3,848 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 28K times each, and 0.577% of those impressions turn into an interaction. That is about 6.49% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2 posts a day over the last 30 days, with activity on roughly 60% of days. Most posts go out around 12:00 UTC, and Saturday is the busiest day of the week. Of the 37 posts sampled, 100% carry an image or video and 8% link out. The account's strongest tracked post pulled 2.8K interactions, about 17x its own typical post.
- What is 伊豆の美術解剖学者's engagement rate on X?
- 伊豆の美術解剖学者 (@kato_anatomy) has an engagement rate of 0.037%, based on the median interactions across 37 original posts from the last 30 days against 435,608 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.037%, 伊豆の美術解剖学者 sits above the 25th percentile of the 37,320 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
- Does @kato_anatomy have real engagement?
- Its engagement rate beats 51% of the tracked X accounts closest to it in follower count (3,848 accounts), which puts it in the middle of its size range group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
- When does @kato_anatomy post?
- Most posts go out around 12:00 UTC, and Saturday is its busiest day, at roughly 1.97 posts per day across the measured window.